Fix style errors identified by checkstyle

src/main/java/cartona/command/EditParser.java

@@ -1,10 +1,10 @@
 package cartona.command;
 
-import cartona.task.DateParser;
 import cartona.exception.CartonaException;
 import cartona.exception.InvalidEditFieldException;
 import cartona.exception.InvalidTaskTimeException;
 
+import cartona.task.DateParser;
 import cartona.task.Deadline;
 import cartona.task.Event;
 import cartona.task.Task;

src/main/java/cartona/command/Parser.java

@@ -1,13 +1,12 @@
 package cartona.command;
 
-import cartona.task.DateParser;
-
 import cartona.exception.EmptyTaskDescriptionException;
 import cartona.exception.InvalidInputException;
 import cartona.exception.InvalidTaskIdException;
 import cartona.exception.InvalidTaskTimeException;
 import cartona.exception.UnknownCommandException;
 
+import cartona.task.DateParser;
 import cartona.task.Deadline;
 import cartona.task.Event;
 import cartona.task.Task;

src/main/java/cartona/task/DateParser.java

@@ -5,10 +5,8 @@
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
-import java.time.format.DateTimeParseException;
 
 import cartona.exception.InvalidTaskTimeException;
-import cartona.task.TaskDate;
 
 
 /**
@@ -33,12 +31,6 @@ public static TaskDate parseTaskDate(String dateString) throws InvalidTaskTimeEx
         }
     }
 
-    /**
-     * Parses the LocalDate from a user's input.
-     *
-     * @return the LocalDate
-     */
-
     /**
      * Parses the date of a new Event input string to get the start or end date of the event
      * @param dateString The input string.

src/main/java/cartona/task/TaskDate.java

@@ -13,6 +13,12 @@
 public class TaskDate {
     private LocalDateTime dateTime;
 
+    /**
+     * Creates a TaskDate from a LocalDate and a string representing the time
+     *
+     * @param date LocalDate representing the date of the TaskDate
+     * @param time the time of the TaskDate (format HHmm)
+     */
     public TaskDate(LocalDate date, String time) {
         this.dateTime = date.atTime(LocalTime
                                     .parse(time, DateTimeFormatter.ofPattern("HHmm")));