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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="resources/styles.css" />
<link rel="stylesheet" href="content/css/styles.css" />
<title>Groovy/Scala Comparison</title>
</head>
<body>
<header>
<h1>Groovy/Scala Comparison</h1>
<nav>
<ul>
<li><button id="prev-btn" title="Previous slide">Previous Slide</button></li>
<li><span id="slide-number"></span><span id="slide-total"></span></li>
<li><button id="next-btn" title="Next Slide">Next Slide</button></li>
</ul>
</nav>
</header>
<div id="deck">
<!--
<section>
<hgroup>
<h1>Hello World!</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
</pre>
</div>
</section>
-->
<section>
<center>
<hgroup>
<h1>Java Language Fellows:</h1>
<h1>Groovy & Scala</h1>
</hgroup>
<br/>
<br/>
<p>Eduardo Rebola</p>
<p>Lucas Torri</p>
</center>
</section>
<section>
<hgroup>
<h1>What's up?</h1>
</hgroup>
<li class="action"> Java lang is old and unproductive
<li class="action"> But the JVM still rocks, right?
<li class="action"> What about cool new languages integrate with legacy Java?
<li class="action"> Ever heard of Groovy and Scala?
</section>
<section>
<hgroup>
<h1>What are we about to show?</h1>
</hgroup>
<li class="action"> The basics from both languages
<li class="action"> ... which basically shows why they are so cool
</section>
<!--
TODO
call-by-name
currying
Option: Some, None
future stuff:
http://squirrelsewer.blogspot.com/2011/02/scalas-upcoming-dynamic-capabilities.html
http://dcsobral.blogspot.com/2011/03/on-scala-29s-road.html
http://www.scala-lang.org/node/1403
http://basementcoders.com/2010/11/scala-language-tour/
http://stackoverflow.com/questions/711913/what-are-the-key-differences-between-scala-and-groovy
http://stronglytypedblog.blogspot.com/2009/07/java-vs-scala-vs-groovy-performance.html
-->
<section>
<hgroup>
<h1>Features</h1>
</hgroup>
<div class="scala codeexample">
<div class="action">
<h2>Scala</h2>
<li> Static typed
<li> Provide seamless integration with Java and .NET
</div>
</div>
<div class="groovy codeexample">
<div class="action">
<h2>Groovy</h2>
<li> Supports dynamic meta-programming
<li> Provide seamless integration with Java
</div>
</div>
<div class="action">
<h2>Both</h2>
<li> Mix FP + OO
<li> Strong typed
<li> Have @nnotations
<li> Have mixins
<li> Have abstract types and polymorphic methods
<li> Provide a interactive shell
<li> It's all Java in the end of the day
</div>
</section>
<section>
<hgroup>
<h1>Hello World!</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat"><span class="source source_scala"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> in a script
</span>println(<span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hello!!"</span>)
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> as an application entry point
</span><span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">HelloWorld</span> {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">main</span>(<span class="variable variable_parameter">args</span>: <span class="entity entity_name entity_name_class">Array</span>[<span class="entity entity_name entity_name_class">String</span>]) {
println(<span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hello!!"</span>)
}
}
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat"><span class="source source_groovy"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> in a script</span>
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Hello!!<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span></span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> as an application entry point
</span><span class="source source_groovy"><span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">HelloWorld</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="storage storage_modifier storage_modifier_static storage_modifier_static_groovy">static</span> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">void</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">main</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">args</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Hello!!<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
</span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span></span></pre>
</div>
</section>
<section>
<hgroup>
<h1>Basic Syntax</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> def to define functions/methods
</span><span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">isTrue</span>(<span class="variable variable_parameter">b</span>: <span class="entity entity_name entity_name_class">Boolean</span>) = b <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> implicit return type
</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> [] instead of <>
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">emptyList</span> = <span class="entity entity_name entity_name_class">List</span>[<span class="entity entity_name entity_name_class">String</span>]<span class="meta meta_parentheses meta_parentheses_scala">()</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> Scala's == != Java's ==
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">p1</span> = <span class="keyword">new</span> <span class="entity entity_name entity_name_class">Point</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="constant constant_numeric constant_numeric_scala">2</span>)
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">p2</span> = <span class="keyword">new</span> <span class="entity entity_name entity_name_class">Point</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="constant constant_numeric constant_numeric_scala">2</span>)
p1 == p2 <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> true
</span>p1 eq p2 <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> false
</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> no handled exceptions
</span><span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">mayFail</span> = <span class="keyword keyword_control keyword_control_flow keyword_control_flow_jump keyword_control_flow_jump_scala">throw</span> <span class="keyword">new</span> <span class="entity entity_name entity_name_class">Exception</span></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> implict public
</span><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">boolean</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">isTrue</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">boolean</span> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{ value </span>}</span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> implicit return statement
</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> implicit return type (Object)
</span><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">isTrue</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">boolean</span> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{ value </span>}</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> implicit parameter types (Object)
</span><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_groovy">Object</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">isTrue</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{ value </span>}</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> generics like Java (but optional)
</span><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_groovy">ArrayList</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">myList</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_generic storage_type_generic_groovy">ArrayList<<span class="storage storage_type storage_type_groovy">String</span>></span>()</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> == refers to equals()
</span><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> obj.is(obj2) refers to java's ==
</span><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_groovy">Point</span> p1 - new </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">Point</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">1</span></span>,<span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">2</span></span></span>)</span>
<span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_groovy">Point</span> p2 = new </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">Point</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">1</span></span>,<span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">2</span></span></span>)</span>
</span>p1 <span class="keyword keyword_operator keyword_operator_comparison keyword_operator_comparison_groovy">==</span> p2 <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> true
</span>p1<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">is</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span>p2<span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> false
</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> All exceptions are treated as RuntimeException
</span><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">mayFail</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="keyword keyword_control keyword_control_exception keyword_control_exception_groovy">throw</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Exception</span>()
</span>}</span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Basic Types</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> Basic types
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">byte</span> <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Byte</span> = <span class="constant constant_numeric constant_numeric_scala">0x01</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">char</span> = <span class="constant constant_character constant_character_literal constant_character_literal_scala">'a'</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">short</span>: <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Short</span> = <span class="constant constant_numeric constant_numeric_scala">1</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">int</span> = <span class="constant constant_numeric constant_numeric_scala">10</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">long</span>: <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Long</span> = <span class="constant constant_numeric constant_numeric_scala">1000000000l</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">float</span> = <span class="constant constant_numeric constant_numeric_scala">3.14f</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">double</span> = <span class="constant constant_numeric constant_numeric_scala">4.13566733e-15</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">symbol</span> = <span class="entity entity_name entity_name_symbol">'symbol</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">str</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"string"</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">mlstr</span> = <span class="string string_quoted string_quoted_triple string_quoted_triple_scala">"""multi
line"""</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">tuple</span> = (<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="string string_quoted string_quoted_double string_quoted_double_scala">"tuple"</span>)
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> you cannot change vals, only vars
</span><span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">variable</span> = <span class="constant constant_numeric constant_numeric_scala">1</span>
variable = <span class="constant constant_numeric constant_numeric_scala">2</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">value</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"text"</span>
value = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"other"</span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> error: reassignment to val</span></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aByte</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1</span> <span class="keyword keyword_operator keyword_operator_as keyword_operator_as_groovy">as</span> <span class="storage storage_type storage_type_groovy">Byte</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aShort</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> (<span class="storage storage_type storage_type_groovy">Short</span>) <span class="constant constant_numeric constant_numeric_groovy">1</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">anInteger</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aLong</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">8768761233</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">anotherLong</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">8L</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aBigInteger</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1111111111111111111111111111111</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aFloat</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1.0F</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aDouble</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1.0D</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aBigDecimal</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1.0</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aString</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>a<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">interpolatedString</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>'aString is <span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$a<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">String</span></span>'<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">multilineString</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_single string_quoted_single_multiline string_quoted_single_multiline_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'''</span>
(1) All whitespaces
(2) are preserved.
(3) Tripe single quotes does NOT allows interpolation.
<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'''</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">multilineInterpolatedStrings</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_double string_quoted_double_multiline string_quoted_double_multiline_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"""</span>
(1) You can mix multiline
(2) and interpolation
(3) aFloat is <span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$a<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">Float</span></span>
<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"""</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aChar</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>a<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> <span class="keyword keyword_operator keyword_operator_as keyword_operator_as_groovy">as</span> <span class="storage storage_type storage_type_groovy">Character</span></span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> constants like Java - with the 'final' keyword.
</span><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> works only for class fields</span></span></pre>
</div>
</section>
<section>
<hgroup>
<h1>Basic Collections</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">alist</span> = <span class="entity entity_name entity_name_class">List</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="constant constant_numeric constant_numeric_scala">2</span>, <span class="constant constant_numeric constant_numeric_scala">3</span>)
<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">sameList</span> = <span class="constant constant_numeric constant_numeric_scala">1</span> :: <span class="constant constant_numeric constant_numeric_scala">2</span> :: <span class="constant constant_numeric constant_numeric_scala">3</span> :: <span class="constant constant_language constant_language_scala">Nil</span>
alist(<span class="constant constant_numeric constant_numeric_scala">0</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> 1
</span>
<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">amap</span> = <span class="entity entity_name entity_name_class">Map</span>(<span class="string string_quoted string_quoted_double string_quoted_double_scala">"a"</span> -> <span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="string string_quoted string_quoted_double string_quoted_double_scala">"b"</span> -> <span class="constant constant_numeric constant_numeric_scala">2</span>, <span class="string string_quoted string_quoted_double string_quoted_double_scala">"c"</span> -> <span class="constant constant_numeric constant_numeric_scala">3</span>)
<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">anarray</span> = <span class="entity entity_name entity_name_class">Array</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="constant constant_numeric constant_numeric_scala">2</span>, <span class="constant constant_numeric constant_numeric_scala">3</span>)
<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">aset</span> = <span class="entity entity_name entity_name_class">Set</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>, <span class="constant constant_numeric constant_numeric_scala">2</span>, <span class="constant constant_numeric constant_numeric_scala">3</span>)
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> and also Vector, Queue,
// Stack, LinkedList, and many more</span></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">anArrayList</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aLinkedList</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span> <span class="keyword keyword_operator keyword_operator_as keyword_operator_as_groovy">as</span> <span class="storage storage_type storage_type_groovy">LinkedList</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_groovy">Set</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aHashSet</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">aLinkedHashMap</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_other constant_other_key constant_other_key_groovy">a</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span> <span class="constant constant_other constant_other_key constant_other_key_groovy">b</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span> <span class="constant constant_other constant_other_key constant_other_key_groovy">c</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span></span>
aLinkedHashMap<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>a <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">1</span>
<span class="storage storage_type storage_type_object storage_type_object_array storage_type_object_array_groovy">Integer</span><span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span> anArray <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span>
anArrayList<span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">0</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> 1
</span>anArrayList<span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">0</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">4</span>
aHashSet<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">asList</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span><span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> 3
</span>aHashSet <span class="keyword keyword_operator keyword_operator_leftshift keyword_operator_leftshift_groovy"><<</span> <span class="constant constant_numeric constant_numeric_groovy">4</span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> [1,2,3,4]</span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Named and Default Params</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">sayHello</span>(<span class="variable variable_parameter">msg</span>: <span class="entity entity_name entity_name_class">String</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hi"</span>) =
println(msg)
sayHello<span class="meta meta_parentheses meta_parentheses_scala">()</span>
sayHello(<span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hello"</span>)
sayHello(msg = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"Oi"</span>)</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">sayHello</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">message</span> <span class="meta meta_parameter meta_parameter_default meta_parameter_default_groovy"><span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Hi<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span></span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="support support_function support_function_print support_function_print_groovy">println</span> message
</span>}</span>
<span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">sayHello</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span>
<span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">sayHello</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Hello<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span>
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">connect</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">params</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> url <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> params<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>url <span class="keyword keyword_operator keyword_operator_elvis keyword_operator_elvis_groovy">?:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>localhost<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
<span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> username <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> params<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>username <span class="keyword keyword_operator keyword_operator_elvis keyword_operator_elvis_groovy">?:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>sa<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
<span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> password <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> params<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>password <span class="keyword keyword_operator keyword_operator_elvis keyword_operator_elvis_groovy">?:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
</span>}</span>
connect <span class="constant constant_other constant_other_key constant_other_key_groovy">url</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>localhost<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>, <span class="constant constant_other constant_other_key constant_other_key_groovy">username</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>sa<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Classes and Stuff</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> mixins, like interfaces, but with implementation
</span><span class="keyword keyword_declaration keyword_declaration_scala">trait</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Flyer</span> {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">fly</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"I'm flying"</span>
}
<span class="keyword keyword_declaration keyword_declaration_scala">trait</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Quacker</span> {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">quack</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"Quack!"</span>
}
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> yeah, you know...
</span><span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Duck</span> <span class="keyword keyword_declaration keyword_declaration_scala">extends</span> <span class="entity entity_other entity_other_inherited-class entity_other_inherited-class_scala">Flyer</span> <span class="keyword keyword_declaration keyword_declaration_scala">with</span> <span class="entity entity_other entity_other_inherited-class entity_other_inherited-class_scala">Quacker</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">d</span> = <span class="keyword">new</span> <span class="entity entity_name entity_name_class">Duck</span>
d.fly; d.quack
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> single instance of a type (singleton)
</span><span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Greeter</span>
<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">g1</span> = <span class="entity entity_name entity_name_class">Greeter</span>; <span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">g2</span> = <span class="entity entity_name entity_name_class">Greeter</span>
g1 eq g2 <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> true
</span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> companion object
</span><span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Duck</span> {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">apply</span><span class="meta meta_parentheses meta_parentheses_scala">()</span> = <span class="keyword">new</span> <span class="entity entity_name entity_name_class">Duck</span>
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">makeItFly</span>(<span class="variable variable_parameter">d</span>: <span class="entity entity_name entity_name_class">Duck</span>) = d.fly
}
<span class="entity entity_name entity_name_class">Duck</span>.makeItFly( <span class="entity entity_name entity_name_class">Duck</span><span class="meta meta_parentheses meta_parentheses_scala">()</span> )
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> a class with lots of code generated by the compiler
</span><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> equals, toString, hashCode, apply, unapply
</span><span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Point</span>(<span class="variable variable_parameter">x</span>: <span class="entity entity_name entity_name_class">Int</span>, <span class="variable variable_parameter">y</span>: <span class="entity entity_name entity_name_class">Int</span>)</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Quacker</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">quack</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{ <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Quack!<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> </span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Flyer</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">fly</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{ <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Fly<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> </span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_declaration meta_declaration_annotation meta_declaration_annotation_groovy"><span class="storage storage_type storage_type_annotation storage_type_annotation_groovy">@Mixin</span><span class="punctuation punctuation_definition punctuation_definition_annotation-arguments punctuation_definition_annotation-arguments_begin punctuation_definition_annotation-arguments_begin_groovy">(</span><span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="storage storage_type storage_type_groovy">Quacker</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span> <span class="storage storage_type storage_type_groovy">Flyer</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span><span class="punctuation punctuation_definition punctuation_definition_annotation-arguments punctuation_definition_annotation-arguments_end punctuation_definition_annotation-arguments_end_groovy">)</span></span>
<span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Duck</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">duck</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Duck</span>()</span>
duck<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">fly</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span>
duck<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">quack</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span></span>
<span class="source source_groovy"><span class="storage storage_type storage_type_annotation storage_type_annotation_groovy">@Singleton</span>
<span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Plateau</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="storage storage_type storage_type_annotation storage_type_annotation_groovy">@Lazy</span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">expensiveResource</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> {
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Expensive resource created<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
}()</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span></span>
<span class="source source_groovy"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span>new Plateau() // fails!
</span><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">plateau1</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="storage storage_type storage_type_groovy">Plateau</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>instance</span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">plateau2</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="storage storage_type storage_type_groovy">Plateau</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>instance</span>
<span class="meta meta_declaration meta_declaration_assertion meta_declaration_assertion_groovy"><span class="keyword keyword_control keyword_control_assert keyword_control_assert_groovy">assert</span> plateau1<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">is</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span>plateau2<span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span></span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Constructors</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span> = <span class="constant constant_numeric constant_numeric_scala">3</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> private val i
</span><span class="keyword">new</span> <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">10</span>).i <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> error: value i is not a member of Number
</span>
<span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">i</span>: <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Int</span>)
<span class="keyword">new</span> <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">10</span>).i <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> 10
</span>
<span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">i</span>: <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Int</span>)
<span class="keyword">new</span> <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">10</span>).i = <span class="constant constant_numeric constant_numeric_scala">7</span>
<span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="storage storage_modifier storage_modifier_access">protected</span> <span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">i</span>: <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Int</span>) {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">this</span>(<span class="variable variable_parameter">s</span>: <span class="entity entity_name entity_name_class">String</span>) = <span class="variable variable_language variable_language_scala">this</span>(s.toInt)
}</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">MutablePoint</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">int</span> x, <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">y</span></span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">MutablePoint</span>() <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> (0,0)
</span><span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">MutablePoint</span>(<span class="constant constant_other constant_other_key constant_other_key_groovy">x</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">1</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> (1,0)
</span><span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">MutablePoint</span>(<span class="constant constant_other constant_other_key constant_other_key_groovy">x</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">1</span>, <span class="constant constant_other constant_other_key constant_other_key_groovy">y</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">2</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> (1,2)
</span>
<span class="storage storage_type storage_type_annotation storage_type_annotation_groovy">@Immutable</span>
<span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Point</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">int</span> x, <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">y</span></span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> Constructor + equals + hashCode generated
</span><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">point</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Point</span>(<span class="constant constant_numeric constant_numeric_groovy">1</span>, <span class="constant constant_numeric constant_numeric_groovy">2</span>)</span>
point<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>x <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">10</span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> error!
</span>point<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>y <span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> 2</span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Getters and Setters</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span>)
<span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">NumberOneHolder</span> {
<span class="storage storage_modifier storage_modifier_access">private</span> <span class="keyword keyword_declaration keyword_declaration_volatile keyword_declaration_volatile_scala">var</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">_n</span>: <span class="entity entity_name entity_name_class">Number</span> = _
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">n</span> = _n
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">n_</span>=(<span class="variable variable_parameter">nn</span>: <span class="entity entity_name entity_name_class">Number</span>): <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Unit</span> = nn <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">match</span> {
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>) => _n = nn
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> _ => error(<span class="string string_quoted string_quoted_double string_quoted_double_scala">"This Number != 1"</span>)
}
}
<span class="entity entity_name entity_name_class">NumberOneHolder</span>.n = <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>)
<span class="entity entity_name entity_name_class">NumberOneHolder</span>.n = <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">2</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> error: This Number != 1</span></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Point</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">int</span> x, <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">y</span></span>
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">void</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">setX</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">int</span> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Overrided setter for x<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
x <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> value
</span>}</span>
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_primitive storage_type_primitive_groovy">int</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">getY</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Overrided getter for y<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span>
y
</span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">point</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Point</span>()</span>
point<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>x <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="constant constant_numeric constant_numeric_groovy">10</span>
point<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>y</span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Closures</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">numbers</span> = <span class="entity entity_name entity_name_class">List</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>,<span class="constant constant_numeric constant_numeric_scala">2</span>,<span class="constant constant_numeric constant_numeric_scala">3</span>,<span class="constant constant_numeric constant_numeric_scala">4</span>,<span class="constant constant_numeric constant_numeric_scala">5</span>,<span class="constant constant_numeric constant_numeric_scala">6</span>)
numbers.foreach { k =>
println(k)
}
numbers.filter(_ % <span class="constant constant_numeric constant_numeric_scala">2</span> == <span class="constant constant_numeric constant_numeric_scala">0</span>)
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">multiply</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span>, <span class="variable variable_parameter">j</span>: <span class="entity entity_name entity_name_class">Int</span>) = i * j
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">multiplyBy10</span> = multiply(<span class="variable variable_parameter">_</span>: <span class="entity entity_name entity_name_class">Int</span>, <span class="constant constant_numeric constant_numeric_scala">10</span>)
numbers map multiplyBy10</span>
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">currying</span>[<span class="entity entity_name entity_name_class">T</span>](<span class="variable variable_parameter">l</span>: <span class="entity entity_name entity_name_class">List</span>[<span class="entity entity_name entity_name_class">T</span>])(<span class="variable variable_parameter">f</span>: <span class="entity entity_name entity_name_class">T</span> => <span class="storage storage_type storage_type_primitive storage_type_primitive_scala">Unit</span>) =
l.foreach(f(_))
currying( <span class="entity entity_name entity_name_class">List</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>,<span class="constant constant_numeric constant_numeric_scala">2</span>,<span class="constant constant_numeric constant_numeric_scala">3</span>) ) { <span class="variable variable_parameter">v</span>: <span class="entity entity_name entity_name_class">Int</span> =>
println(v)
}</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>each {
<span class="support support_function support_function_print support_function_print_groovy">println</span> it
}
<span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_other constant_other_key constant_other_key_groovy">name</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>Eduardo<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span> <span class="constant constant_other constant_other_key constant_other_key_groovy">age</span><span class="punctuation punctuation_definition punctuation_definition_seperator punctuation_definition_seperator_key-value punctuation_definition_seperator_key-value_groovy">:</span> <span class="constant constant_numeric constant_numeric_groovy">29</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>each {<span class="meta meta_closure meta_closure_parameters meta_closure_parameters_groovy"><span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">key</span></span>,<span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span> </span></span><span class="keyword keyword_operator keyword_operator_groovy">-></span>
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span><span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$k<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">ey</span></span> = <span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$v<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">alue</span></span><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
}
evenValues <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">4</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">5</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">6</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>findAll {<span class="meta meta_closure meta_closure_parameters meta_closure_parameters_groovy"><span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">value</span> </span></span><span class="keyword keyword_operator keyword_operator_groovy">-></span>
value <span class="keyword keyword_operator keyword_operator_arithmetic keyword_operator_arithmetic_groovy">%</span> <span class="constant constant_numeric constant_numeric_groovy">2</span> <span class="keyword keyword_operator keyword_operator_comparison keyword_operator_comparison_groovy">==</span> <span class="constant constant_numeric constant_numeric_groovy">0</span>
}
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">closures</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="meta meta_structure meta_structure_groovy"><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_begin punctuation_definition_structure_begin_groovy">[</span><span class="constant constant_numeric constant_numeric_groovy">1</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">2</span><span class="punctuation punctuation_definition punctuation_definition_separator punctuation_definition_separator_groovy">,</span><span class="constant constant_numeric constant_numeric_groovy">3</span><span class="punctuation punctuation_definition punctuation_definition_structure punctuation_definition_structure_end punctuation_definition_structure_end_groovy">]</span></span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>collect {<span class="meta meta_closure meta_closure_parameters meta_closure_parameters_groovy"><span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">seconds</span> </span></span><span class="keyword keyword_operator keyword_operator_groovy">-></span>
<span class="keyword keyword_control keyword_control_groovy">return</span> {
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Sleeping for <span class="source source_groovy source_groovy_embedded source_groovy_embedded_source"><span class="punctuation punctuation_section punctuation_section_embedded punctuation_section_embedded_groovy">${</span>seconds<span class="punctuation punctuation_section punctuation_section_embedded punctuation_section_embedded_groovy">}</span></span>s<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
sleep seconds <span class="keyword keyword_operator keyword_operator_arithmetic keyword_operator_arithmetic_groovy">*</span> <span class="constant constant_numeric constant_numeric_groovy">1000L</span>
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Done!<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
}
}</span>
closures<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>each {
<span class="storage storage_type storage_type_groovy">Thread</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>start it
}</span>
<span class="source source_groovy"><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">printDistance</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> {<span class="meta meta_closure meta_closure_parameters meta_closure_parameters_groovy"><span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">unit</span></span>,<span class="meta meta_closure meta_closure_parameter meta_closure_parameter_groovy"> <span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">distance</span> </span></span><span class="keyword keyword_operator keyword_operator_groovy">-></span>
<span class="support support_function support_function_print support_function_print_groovy">println</span> <span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Distance is <span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$d<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">istance</span></span> <span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">$u<span class="variable variable_other variable_other_interpolated variable_other_interpolated_groovy">nit</span></span><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
}</span>
<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">printDistanceInKm</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> printDistance<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">curry</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>km<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span></span>
print<span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy">DistanceInKm <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">10</span></span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Pimpins</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">IntPlus</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span>) {
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">weeks</span> = i * <span class="constant constant_numeric constant_numeric_scala">7</span>
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">ago</span>: <span class="entity entity_name entity_name_class">Date</span> = {
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">cal</span> = <span class="entity entity_name entity_name_class">Calendar</span>.getInstance
cal.add(<span class="entity entity_name entity_name_class">Calendar</span>.<span class="entity entity_name entity_name_class">DATE</span>, -i)
cal.getTime
}
}
<span class="storage storage_modifier storage_modifier_other">implicit</span> <span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">int2IntPlus</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span>) = <span class="keyword">new</span> <span class="entity entity_name entity_name_class">IntPlus</span>(i)
<span class="constant constant_numeric constant_numeric_scala">2.</span>weeks.ago</span>
<span class="source source_scala"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> java.util.Date = Fri Feb 25 12:32:34 BRT 2011</span></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="storage storage_type storage_type_groovy">Integer</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>metaClass<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>getWeeks <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> {
delegate <span class="keyword keyword_operator keyword_operator_arithmetic keyword_operator_arithmetic_groovy">*</span> <span class="constant constant_numeric constant_numeric_groovy">7</span>
}
<span class="storage storage_type storage_type_groovy">Integer</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>metaClass<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>getAgo <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> {
<span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Date</span>() <span class="keyword keyword_operator keyword_operator_arithmetic keyword_operator_arithmetic_groovy">-</span> delegate
}
<span class="constant constant_numeric constant_numeric_groovy">2.</span>weeks<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>ago
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span> Commands GEP-3 (Groovy 1.8)
</span><span class="storage storage_type storage_type_groovy">Recipe</span><span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>instructions {
take medium_bowl
combine soy_sauce, vinegar, chili_powder, garlic
place chicken into sauce
turn once to coat
marinate <span class="constant constant_numeric constant_numeric_groovy">30.</span>minutes at room_temperature
}</span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Duck Typing</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_scala">type</span> <span class="entity entity_name entity_name_type entity_name_type_declaration">Greeter</span> = { <span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">hello</span>: <span class="entity entity_name entity_name_class">String</span> }
<span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Frog</span> { <span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">hello</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hello, I'm a frog"</span> }
<span class="keyword keyword_declaration keyword_declaration_scala">object</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Duck</span> { <span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">hello</span> = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"Hi, I'm a duck"</span> }
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">sayHello</span>(<span class="variable variable_parameter">g</span>: <span class="entity entity_name entity_name_class">Greeter</span>) = println(g.hello)
sayHello(<span class="entity entity_name entity_name_class">Frog</span>)
sayHello(<span class="entity entity_name entity_name_class">Duck</span>)</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Frog</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">hello</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Hello, I'm a frog<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
</span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_definition meta_definition_class meta_definition_class_groovy"><span class="meta meta_class meta_class_identifier meta_class_identifier_groovy"><span class="storage storage_modifier storage_modifier_groovy">class</span> <span class="entity entity_name entity_name_type entity_name_type_class entity_name_type_class_groovy">Duck</span></span> <span class="meta meta_class meta_class_body meta_class_body_groovy">{
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"> <span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">hello</span>()</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="string string_quoted string_quoted_double string_quoted_double_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">"</span>Hi, I'm a duck<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">"</span></span>
</span>}</span>
</span><span class="punctuation punctuation_section punctuation_section_class punctuation_section_class_end punctuation_section_class_end_groovy">}</span></span>
<span class="meta meta_definition meta_definition_method meta_definition_method_groovy"><span class="meta meta_method meta_method_return-type meta_method_return-type_java"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> </span><span class="meta meta_definition meta_definition_method meta_definition_method_signature meta_definition_method_signature_java"><span class="entity entity_name entity_name_function entity_name_function_java">sayHello</span>(<span class="meta meta_method meta_method_parameters meta_method_parameters_groovy"><span class="meta meta_method meta_method_parameter meta_method_parameter_groovy"><span class="variable variable_parameter variable_parameter_method variable_parameter_method_groovy">animal</span></span></span>)</span> <span class="meta meta_method meta_method_body meta_method_body_java">{
<span class="support support_function support_function_print support_function_print_groovy">println</span> animal<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">hello</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span>
</span>}</span>
sayHello <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Frog</span>()
sayHello <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">Duck</span>()</span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Pattern Matching</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="keyword keyword_declaration keyword_declaration_scala">class</span> <span class="entity entity_name entity_name_class entity_name_class_declaration">Number</span>(<span class="variable variable_parameter">i</span>: <span class="entity entity_name entity_name_class">Int</span>)
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">ARegex</span> = <span class="string string_quoted string_quoted_triple string_quoted_triple_scala">"""x = (\d+)"""</span>.r
<span class="keyword keyword_declaration keyword_declaration_scala">def</span> <span class="entity entity_name entity_name_function entity_name_function_declaration">someMatch</span>(<span class="variable variable_parameter">a</span>: <span class="entity entity_name entity_name_class">Any</span>) = a <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">match</span> {
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="string string_quoted string_quoted_double string_quoted_double_scala">"abc"</span> | <span class="string string_quoted string_quoted_double string_quoted_double_scala">"xyz"</span> => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"string matched"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>) => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"one"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="entity entity_name entity_name_class">Number</span>(i) <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">if</span> i < <span class="constant constant_numeric constant_numeric_scala">10</span> => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"< 10 && != 1"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="entity entity_name entity_name_class">Number</span>(_) => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"other number"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="entity entity_name entity_name_class">ARegex</span>(x) => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"found "</span> + x
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="variable variable_parameter">l</span>: <span class="entity entity_name entity_name_class">Long</span> => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"a long"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="constant constant_language constant_language_scala">true</span> => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"yes"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="constant constant_numeric constant_numeric_scala">1</span> :: <span class="constant constant_numeric constant_numeric_scala">2</span> :: tail => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"List(1,2,...)"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> (<span class="string string_quoted string_quoted_double string_quoted_double_scala">"t"</span>, v2) => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"tuple"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <tag>{nodes @ _*}</tag> => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"found "</span>+nodes.length+<span class="string string_quoted string_quoted_double string_quoted_double_scala">" node(s)"</span>
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> _ => <span class="string string_quoted string_quoted_double string_quoted_double_scala">"didn't match"</span>
}
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> (a,b) = (<span class="constant constant_numeric constant_numeric_scala">1</span>,<span class="constant constant_numeric constant_numeric_scala">2</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> a = 1, b = 2
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">head</span> :: tail = <span class="entity entity_name entity_name_class">List</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>,<span class="constant constant_numeric constant_numeric_scala">2</span>,<span class="constant constant_numeric constant_numeric_scala">3</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> head = 1, tail = List(2,3)
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">Number</span>(n) = <span class="entity entity_name entity_name_class">Number</span>(<span class="constant constant_numeric constant_numeric_scala">10</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> n = 10
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">ARegex</span>(x) = <span class="string string_quoted string_quoted_double string_quoted_double_scala">"x = 7"</span> <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> x = 7</span></span>
<span class="source source_scala"><span class="keyword keyword_control keyword_control_exception keyword_control_exception_scala">try</span> { <span class="comment comment_block comment_block_scala">/*...*/</span> } <span class="keyword keyword_control keyword_control_exception keyword_control_exception_scala">catch</span> {
<span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="variable variable_parameter">e</span>: <span class="entity entity_name entity_name_class">Exception</span> => <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> handle E
</span> <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">case</span> <span class="variable variable_parameter">ioe</span>: <span class="entity entity_name entity_name_class">IOException</span> => <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> handle IOE
</span>}</span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span>pattern on righthand side between single-slashes
</span><span class="meta meta_declaration meta_declaration_assertion meta_declaration_assertion_groovy"><span class="keyword keyword_control keyword_control_assert keyword_control_assert_groovy">assert</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>abc<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> <span class="keyword keyword_operator keyword_operator_match keyword_operator_match_groovy">==~</span> <span class="string string_regexp string_regexp_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_begin punctuation_definition_string_regexp_begin_groovy">/</span>abc<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_end punctuation_definition_string_regexp_end_groovy">/</span></span></span>
<span class="meta meta_declaration meta_declaration_assertion meta_declaration_assertion_groovy"><span class="keyword keyword_control keyword_control_assert keyword_control_assert_groovy">assert</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>abc<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> <span class="keyword keyword_operator keyword_operator_match keyword_operator_match_groovy">==~</span> <span class="string string_regexp string_regexp_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_begin punctuation_definition_string_regexp_begin_groovy">/</span>a.c<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_end punctuation_definition_string_regexp_end_groovy">/</span></span></span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span>turn on flag halfway thru pattern
</span><span class="meta meta_declaration meta_declaration_assertion meta_declaration_assertion_groovy"><span class="keyword keyword_control keyword_control_assert keyword_control_assert_groovy">assert</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>abcDEFG<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> <span class="keyword keyword_operator keyword_operator_match keyword_operator_match_groovy">==~</span> <span class="string string_regexp string_regexp_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_begin punctuation_definition_string_regexp_begin_groovy">/</span>abc(?i)defg<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_end punctuation_definition_string_regexp_end_groovy">/</span></span></span>
<span class="comment comment_line comment_line_double-slash comment_line_double-slash_groovy"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_groovy">//</span>turn flag on, then off again
</span><span class="meta meta_declaration meta_declaration_assertion meta_declaration_assertion_groovy"><span class="keyword keyword_control keyword_control_assert keyword_control_assert_groovy">assert</span> <span class="string string_quoted string_quoted_single string_quoted_single_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_begin punctuation_definition_string_begin_groovy">'</span>abCDefg<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_end punctuation_definition_string_end_groovy">'</span></span> <span class="keyword keyword_operator keyword_operator_match keyword_operator_match_groovy">==~</span> <span class="string string_regexp string_regexp_groovy"><span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_begin punctuation_definition_string_regexp_begin_groovy">/</span>ab(?i)cd(?-i)efg<span class="punctuation punctuation_definition punctuation_definition_string punctuation_definition_string_regexp punctuation_definition_string_regexp_end punctuation_definition_string_regexp_end_groovy">/</span></span></span></span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>XML Integration</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">xml</span> = <numbers>
{ <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">for</span>(n <- <span class="constant constant_numeric constant_numeric_scala">0</span> until <span class="constant constant_numeric constant_numeric_scala">10</span>) <span class="keyword keyword_control keyword_control_flow keyword_control_flow_scala">yield</span> <n>{n}</n> }
</numbers>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <a>{n}</a> = <a><span class="constant constant_numeric constant_numeric_scala">1</span></a></span>
</pre>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<pre class="textmate-source wombat">
<span class="source source_groovy"><span class="meta meta_definition meta_definition_variable meta_definition_variable_groovy"><span class="storage storage_type storage_type_def storage_type_def_groovy">def</span> <span class="meta meta_definition meta_definition_variable meta_definition_variable_name meta_definition_variable_name_groovy">xml</span> <span class="keyword keyword_operator keyword_operator_assignment keyword_operator_assignment_groovy">=</span> <span class="keyword keyword_other keyword_other_new keyword_other_new_groovy">new</span> <span class="storage storage_type storage_type_groovy">MarkupBuilder</span>()</span>
xml<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span><span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">numbers</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span> {
(<span class="constant constant_numeric constant_numeric_groovy">0</span><span class="keyword keyword_operator keyword_operator_range keyword_operator_range_groovy">..</span><span class="constant constant_numeric constant_numeric_groovy">10</span>)<span class="keyword keyword_operator keyword_operator_navigation keyword_operator_navigation_groovy">.</span>each {
<span class="meta meta_method-call meta_method-call_groovy"><span class="meta meta_method meta_method_groovy">n</span><span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_begin punctuation_definition_method-parameters_begin_groovy">(</span>it<span class="punctuation punctuation_definition punctuation_definition_method-parameters punctuation_definition_method-parameters_end punctuation_definition_method-parameters_end_groovy">)</span></span>
}
}</span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>Option, Some, None</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<pre class="textmate-source wombat">
<span class="source source_scala"><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">l</span> = <span class="entity entity_name entity_name_class">List</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>,<span class="constant constant_numeric constant_numeric_scala">2</span>,<span class="constant constant_numeric constant_numeric_scala">3</span>)
l.find(_ == <span class="constant constant_numeric constant_numeric_scala">1</span>) == <span class="entity entity_name entity_name_class">Some</span>(<span class="constant constant_numeric constant_numeric_scala">1</span>)
l.find(_ == <span class="constant constant_numeric constant_numeric_scala">4</span>) == <span class="constant constant_language constant_language_scala">None</span>
l find(_ == <span class="constant constant_numeric constant_numeric_scala">1</span>) isDefined <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> true
</span>
l find(_ == <span class="constant constant_numeric constant_numeric_scala">1</span>) foreach (println) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> println(1)
</span>l find(_ == <span class="constant constant_numeric constant_numeric_scala">4</span>) foreach (println) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> -
</span>
<span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">Some</span>(v) = l find(_ == <span class="constant constant_numeric constant_numeric_scala">4</span>) orElse <span class="entity entity_name entity_name_class">Some</span>(<span class="constant constant_numeric constant_numeric_scala">3</span>) <span class="comment comment_line comment_line_double-slash comment_line_double-slash_scala"><span class="punctuation punctuation_definition punctuation_definition_comment punctuation_definition_comment_scala">//</span> v = 3
</span><span class="keyword keyword_declaration keyword_declaration_stable keyword_declaration_stable_scala">val</span> <span class="entity entity_name entity_name_val entity_name_val_declaration">aNull</span> = <span class="constant constant_language constant_language_scala">None</span> orNull</span>
</pre>
</div>
</section>
<section>
<hgroup>
<h1>References</h1>
</hgroup>
<div class="scala codeexample">
<h2>Scala</h2>
<li><a href="http://www.scala-lang.org/">Scala Language</a>
<li><a href="http://programming-scala.labs.oreilly.com/">Programming Scala Book (free)</a>
</div>
<div class="groovy codeexample">
<h2>Groovy</h2>
<li><a href="http://groovy.codehaus.org/">Groovy Language</a>
<li><a href="http://www.amazon.com/Groovy-Recipes-Greasing-Pragmatic-Programmers/dp/0978739299/ref=sr_1_1?ie=UTF8&qid=1300839774&sr=8-1">Groovy Recipies Book</a>
</div>
<h2>Slides</h2>
<li> <a href="http://github.com/robflaherty/html-slideshow">Lightweight HTML5-based slideshow</a>
</section>
</div>
<!-- /deck -->
<script src="resources/jquery-1.4.2.min.js"></script>
<script src="resources/htmlSlides.js"></script>
<script>
//This is just to demo the custom events
$('html').bind('newSlide', function(e,id) { console.log('New slide event, slide number ' + id)});
$('html').bind('newAction', function(e,id) { console.log('New action event, action number ' + id)});
</script>
</body>
</html>