Minor changes

src/main/java/Duke.java

@@ -18,7 +18,7 @@
  * Duke class starts, runs and stops the main program.
  *
  * @author Chen Qixing
- * @version 0.1
+ * @version 0.2
  * @since 16 AUG 2020
  */
 public class Duke {

src/main/java/common/Utils.java

@@ -11,7 +11,6 @@
  */
 public class Utils {
 
-
     /**
      * Convert a date from String to LocalDate.
      *
@@ -31,7 +30,7 @@ public static LocalDate dateStringToDate(String dateString) {
             return null;
         }
     }
-
+    
     /**
      * Convert a time from String to LocalDate.
      *

src/main/java/data/TaskList.java

@@ -43,6 +43,7 @@ public Task get(int index) {
      * Remove task from TaskList using index.
      *
      * @return task that is removed from the TaskList.
+     * @throws InvalidTaskNumberException if the task number is out of range.
      */
     public Task deleteTask(int taskNum) throws InvalidTaskNumberException {
         if (taskNum <= 0 || taskNum > tasks.size()) {
@@ -55,6 +56,8 @@ public Task deleteTask(int taskNum) throws InvalidTaskNumberException {
      * Mark task as done using index.
      *
      * @return task that is marked as done.
+     * @throws InvalidTaskNumberException if the task number is out of range.
+     * @throws TaskDoneException if the task is already done.
      */
     public Task markAsDone(int taskNum) throws InvalidTaskNumberException, TaskDoneException {
         if (taskNum <= 0 || taskNum > tasks.size()) {

src/main/java/parser/Parser.java

@@ -1,6 +1,14 @@
 package parser;
 
-import commands.*;
+import commands.ByeCommand;
+import commands.Command;
+import commands.DeadlineCommand;
+import commands.DeleteCommand;
+import commands.DoneCommand;
+import commands.EventCommand;
+import commands.FindCommand;
+import commands.ListCommand;
+import commands.TodoCommand;
 import exceptions.InvalidCommandException;
 import exceptions.UnknownCommandException;