Add Javadoc comments

src/main/java/seedu/duke/Parser.java

@@ -33,9 +33,9 @@ public static Command parse(String inputText) throws DukeException {
             if (splitInput.length == 2 && COMMANDS.contains(splitInput[0])) {
                 String commandWord = splitInput[0];
                 String details = splitInput[1];
-                if (commandWord.equals("todo") ||
-                    commandWord.equals("deadline") ||
-                    commandWord.equals("event")) {
+                if (commandWord.equals("todo")
+                        || commandWord.equals("deadline")
+                        || commandWord.equals("event")) {
                     return addTaskParser(commandWord, details);
 
                 } else if (commandWord.equals("edit")) {
@@ -77,6 +77,13 @@ public static Command parse(String inputText) throws DukeException {
         return null;
     }
 
+    /**
+     * Separate method for parsing add task commands (todo, deadline or event)
+     * @param commandWord
+     * @param details
+     * @return
+     * @throws DukeException
+     */
     public static Command addTaskParser(String commandWord, String details) throws DukeException {
         if (commandWord.equals("todo")) {
             if (details.length() <= 1) {
@@ -113,6 +120,12 @@ public static Command addTaskParser(String commandWord, String details) throws D
         }
     }
 
+    /**
+     * Separate method for parsing 'edit' command
+     * @param details user input, omitting the 'edit' word
+     * @return
+     * @throws DukeException
+     */
     public static Command editParser(String details) throws DukeException {
         String[] taskDesc = details.split(" ", 3);
         int index;

src/main/java/seedu/duke/command/CoffeeCommand.java

@@ -4,11 +4,20 @@
 import seedu.duke.exception.DukeException;
 import seedu.duke.list.TaskList;
 
+/**
+ * Class for executing Coffee command
+ */
 public class CoffeeCommand extends Command {
     public CoffeeCommand() {
         super();
     }
 
+    /**
+     * Makes the user a cup of coffee
+     * @param list
+     * @return
+     * @throws DukeException
+     */
     @Override
     public String execute(TaskList list) throws DukeException {
         return Ui.makeCoffee();

src/main/java/seedu/duke/command/EditNameCommand.java

@@ -6,6 +6,9 @@
 import seedu.duke.ui.Ui;
 import seedu.duke.task.Task;
 
+/**
+ * Class for executing edit name command
+ */
 public class EditNameCommand extends Command {
     private int index;
     private String desc;
@@ -15,6 +18,12 @@ public EditNameCommand(int index, String desc) {
         this.desc = desc;
     }
 
+    /**
+     * Changes the name/description of the given task
+     * @param list
+     * @return
+     * @throws DukeException
+     */
     @Override
     public String execute(TaskList list) throws DukeException {
         int len = list.size();

src/main/java/seedu/duke/command/EditTimeCommand.java

@@ -8,6 +8,9 @@
 import seedu.duke.task.EventTask;
 import seedu.duke.task.Task;
 
+/**
+ * Class for executing Edit Time command
+ */
 public class EditTimeCommand extends Command {
     private int index;
     private String newTime;
@@ -17,6 +20,12 @@ public EditTimeCommand(int index, String newTime) {
         this.newTime = newTime;
     }
 
+    /**
+     * Changes the deadline/event time for the given task
+     * @param list
+     * @return
+     * @throws DukeException
+     */
     @Override
     public String execute(TaskList list) throws DukeException {
         int len = list.size();

src/main/java/seedu/duke/exception/NotEnoughArgumentsException.java

@@ -1,5 +1,8 @@
 package seedu.duke.exception;
 
+/**
+ * Exception class to be used when insufficient arguments are inputed
+ */
 public class NotEnoughArgumentsException extends DukeException {
     public NotEnoughArgumentsException() {
         super("I'll need more information than that, please, Master.");

src/main/java/seedu/duke/exception/NotNumberException.java

@@ -1,5 +1,8 @@
 package seedu.duke.exception;
 
+/**
+ * Exception class to be used when format for certain commands is wrong
+ */
 public class NotNumberException extends DukeException {
     public NotNumberException() {
         super("Please input the index of the relevant task after the command word, Master.");

src/main/java/seedu/duke/exception/TaskDoesNotExistException.java

@@ -1,7 +1,9 @@
 package seedu.duke.exception;
 
+/**
+ * Exception class to be used when the task index given does not exist
+ */
 public class TaskDoesNotExistException extends DukeException {
-
     public TaskDoesNotExistException(int i) {
         super("There is no task " + Integer.valueOf(i + 1) + " just yet, Master.");
     }

src/main/java/seedu/duke/exception/TooManyArgumentsException.java

@@ -1,7 +1,8 @@
 package seedu.duke.exception;
 
-import seedu.duke.Duke;
-
+/**
+ * Exception class to be used when too many arguments are inputted
+ */
 public class TooManyArgumentsException extends DukeException {
     public TooManyArgumentsException(String command) {
         super("Please input only '" + command + "' and a number, Master.");

src/main/java/seedu/duke/exception/UnrecognisedCommandException.java

@@ -1,5 +1,8 @@
 package seedu.duke.exception;
 
+/**
+ * Exception class to be used when user input cannot be handled
+ */
 public class UnrecognisedCommandException extends DukeException {
     public UnrecognisedCommandException() {
         super("I'm sorry Master, I have not yet been trained to respond to that.");

src/main/java/seedu/duke/task/DeadlineTask.java

@@ -37,6 +37,10 @@ public DeadlineTask(String name, String date, boolean isDone) {
         }
     }
 
+    /**
+     * Changes the date
+     * @param date
+     */
     public void editTime(String date) {
         try {
             this.date = LocalDate.parse(date);

src/main/java/seedu/duke/task/EventTask.java

@@ -37,6 +37,10 @@ public EventTask(String name, String date, boolean isDone) {
         }
     }
 
+    /**
+     * Changes the date
+     * @param date
+     */
     public void editTime(String date) {
         try {
             this.date = LocalDate.parse(date);

src/main/java/seedu/duke/task/Task.java

@@ -1,5 +1,8 @@
 package seedu.duke.task;
 
+/**
+ * General class for tasks
+ */
 public class Task {
     String name;
     boolean isDone;
@@ -10,12 +13,21 @@ public Task(String name) {
         this.isDone = false;
     }
 
+    /**
+     * Constructor for loading list
+     * @param name
+     * @param isDone
+     */
     public Task(String name, boolean isDone) {
         this.name = name;
         this.isDone = isDone;
     }
 
 
+    /**
+     * Indicates if a task is done or not
+     * @return
+     */
     public String getStatus() {
         if (isDone) {
             return "[X]";
@@ -33,6 +45,10 @@ public String getName() {
     }
     public String getType() { return TYPE;};
 
+    /**
+     * Marks a task as done.
+     * @return true if successfully marked done, false if task is already done
+     */
     public boolean markDone() {
         if (isDone) {
             return false;
@@ -41,6 +57,10 @@ public boolean markDone() {
         return true;
     }
 
+    /**
+     * Marks a task as undone
+     * @return trust if successfully marked undone, false if task is already undone
+     */
     public boolean markUndone() {
         if (!isDone) {
             return false;
@@ -49,6 +69,10 @@ public boolean markUndone() {
          return true;
     }
 
+    /**
+     * Changes the name/description
+     * @param newName
+     */
     public void changeDesc(String newName) {
         this.name = newName;
     }