Added JavaDoc to describe the different classes

Author: weixue123

src/main/java/duke/Duke.java

@@ -6,12 +6,17 @@
 import duke.tasks.TaskList;
 import duke.ui.Parser;
 
+/**
+ * The chatbot/to-do list application.
+ */
 public class Duke {
     private final TaskList tasks;
     private final Storage storage;
 
     /**
-     * Initializes an instance of Duke to handle ALL the logic of the application.
+     * Initializes an instance of Duke with a <code>TaskList</code> property, which is essentially the
+     * state of the application, and a <code>Storage</code> property, which handles the loading and saving
+     * of tasks when the application starts and shuts down respectively.
      *
      * @param filepath Path to text file from which tasks are loaded when the app starts, and to
      *                 which tasks are saved when the app terminates.

src/test/java/duke/commands/TestAddTaskCommand.java

@@ -13,6 +13,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>AddTaskCommand</code> class in duke.commands
+ */
 public class TestAddTaskCommand {
     private final ToDo toDo;
     private final Deadline deadline;

src/test/java/duke/commands/TestByeCommand.java

@@ -8,6 +8,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>ByeCommand</code> class in duke.commands
+ */
 public class TestByeCommand {
     private final ToDo toDo;
     private final TaskList tasks;

src/test/java/duke/commands/TestDeleteCommand.java

@@ -13,6 +13,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>DeleteCommand</code> class in duke.commands
+ */
 public class TestDeleteCommand {
     private final ToDo toDo;
     private final Deadline deadline;

src/test/java/duke/commands/TestDoneCommand.java

@@ -14,6 +14,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>DoneCommand</code> class in duke.commands
+ */
 public class TestDoneCommand {
     private final ToDo toDo;
     private final Deadline deadline;

src/test/java/duke/commands/TestFindCommand.java

@@ -13,6 +13,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>FindCommand</code> class in duke.commands
+ */
 public class TestFindCommand {
     private final ToDo toDo;
     private final Deadline deadline;

src/test/java/duke/commands/TestInvalidInputCommand.java

@@ -12,7 +12,9 @@
 import duke.tasks.ToDo;
 import duke.ui.Parser;
 
-
+/**
+ * JUnit test for the <code>InvalidInputCommand</code> class in duke.commands
+ */
 public class TestInvalidInputCommand {
     private final ToDo toDo;
     private final TaskList tasks;

src/test/java/duke/commands/TestListCommand.java

@@ -13,6 +13,9 @@
 import duke.tasks.TaskList;
 import duke.tasks.ToDo;
 
+/**
+ * JUnit test for the <code>ListCommand</code> class in duke.commands
+ */
 public class TestListCommand {
     private final ToDo toDo;
     private final Deadline deadline;

src/test/java/duke/tasks/TestDeadline.java

@@ -7,7 +7,9 @@
 
 import org.junit.jupiter.api.Test;
 
-
+/**
+ * JUnit test for the <code>Deadline</code> class in duke.tasks
+ */
 public class TestDeadline {
     private final String description;
     private final String dateTimeString;

src/test/java/duke/tasks/TestEvent.java

@@ -7,7 +7,9 @@
 
 import org.junit.jupiter.api.Test;
 
-
+/**
+ * JUnit test for the <code>Event</code> class in duke.tasks
+ */
 public class TestEvent {
     private final String description;
     private final String dateTimeString;