Level 1. Greet, Echo & Exit

Author: huixianc

src/main/java/Duke.java

@@ -1,10 +1,56 @@
+import java.util.Scanner;
+
 public class Duke {
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        // Scanner object
+        Scanner sc = new Scanner(System.in);
+
+        // greeting
+        greet();
+
+        // take in user's command
+        String command = sc.nextLine();
+
+        // continue processing user's command, as long as command is not bye
+        while (!command.equals("bye")) {
+            echo(command);
+            command = sc.nextLine();
+        }
+
+        // exit
+        exit();
+    }
+
+    // prints greeting to user
+    public static void greet() {
+        System.out.println("    ------------------------------------------------------------");
+
+        // logo obtained using https://www.kammerl.de/ascii/AsciiSignature.php
+        String logo = "     __  __ _           _          _      \n" +
+                "    |  \\/  | |         | |        | |     \n" +
+                "    | \\  / | |__   ___ | |_       | |_ __ \n" +
+                "    | |\\/| | '_ \\ / _ \\| __|  _   | | '__|\n" +
+                "    | |  | | |_) | (_) | |_  | |__| | |   \n" +
+                "    |_|  |_|_.__/ \\___/ \\__|  \\____/|_|   \n" +
+                "\n";
+
+        System.out.println(logo);
+        System.out.println("    Hello, I'm Mbot Jr!\n" +
+                "    How may I help you?");
+        System.out.println("    ------------------------------------------------------------");
+    }
+
+    // echos user's command
+    public static void echo(String comm) {
+        System.out.println("    ------------------------------------------------------------");
+        System.out.println("    " + comm);
+        System.out.println("    ------------------------------------------------------------");
+    }
+
+    // exits
+    public static void exit() {
+        System.out.println("    ------------------------------------------------------------");
+        System.out.println("    See you later!");
+        System.out.println("    ------------------------------------------------------------");
     }
 }