(The MyDate class) Design a class named MyDate. The class contains:

/*********************************************************************************
* (The MyDate class) Design a class named MyDate. The class contains:            *
*                                                                                *
* ■ The data fields year, month, and day that represent a date. month is         *
*   0-based, i.e., 0 is for January.                                             *
* ■ A no-arg constructor that creates a MyDate object for the current date.      *
* ■ A constructor that constructs a MyDate object with a specified elapsed time  *
*   since midnight, January 1, 1970, in milliseconds.                            *
* ■ A constructor that constructs a MyDate object with the specified year,       *
*   month, and day.                                                              *
* ■ Three getter methods for the data fields year, month, and day, respectively. *
* ■ A method named setDate(long elapsedTime) that sets a new date for            *
*   the object using the elapsed time.                                           *
*                                                                                *
* Draw the UML diagram for the class and then implement the class. Write a       *
* test program that creates two MyDate objects (using new MyDate() and new       *
* MyDate(34355555133101L)) and displays their year, month, and day.              *
*                                                                                *
* (Hint: The first two constructors will extract the year, month, and day from   *
* the elapsed time. For example, if the elapsed time is                          *
* 561555550000 milliseconds, the year is 1987, the month is 9, and the day is 18.*
* You may use the GregorianCalendar class discussed in Programming Exercise 9.5  *
* to simplify coding.)                                                           *
*********************************************************************************/
public class Exercise_10_14 {
	/** Main method */
	public static void main(String[] args) {
		// Create two MyDate objects
		MyDate date1 = new MyDate();
		MyDate date2 = new MyDate(34355555133101L);

		System.out.println("Date1: " + date1.getMonth() + "/" + date1.getDay() + 
			"/" + date1.getYear());
		System.out.println("Date2: " + date2.getMonth() + "/" + date2.getDay() + 
			"/" + date2.getYear());
	}
}

MyDate.java

/*******************************************
*                MyDate                    *
*------------------------------------------*
* -year: int                               *
* -month: int                              *
* -day: int                                *
* +MyDate()                                *
* +MyDate(elapsedTime: long)               *
* +MyDate(year: int, month: int, day: int) *
* +getYear(): int                          *
* +getMonth(): int                         *
* +getDay(): int                           *
* +setDate(elapsedTime: long)              *
*******************************************/

import java.util.GregorianCalendar;

// Implement MyDate class
public class MyDate {
	// Data Fields
	private int year;
	private int month;
	private int day;

	/** Creates a MyDate object for the current date */
	MyDate() {
		GregorianCalendar calander = new GregorianCalendar();
		year = calander.get(GregorianCalendar.YEAR);
		month = calander.get(GregorianCalendar.MONTH);
		day = calander.get(GregorianCalendar.DAY_OF_MONTH);
	}

	/** Creates a MyDate object with a specified elapsed time
	*	 since midnight, January 1, 1970, in milliseconds */
	MyDate(long elapsedTime) {
		setDate(elapsedTime);
	}

	/** Creates a MyDate object with the 
	*   specified year, month, and day */
	MyDate(int year, int month, int day) {
		this.year = year;
		this.month = month;
		this.day = day;
	}

	/** Return year */
	public int getYear() {
		return year;
	}

	/** Return month */
	public String getMonth() {
		String m = String.valueOf(month + 1);
		return (month < 10 ? "0" + m : m);
	}

	/** Return day */
	public String getDay() {
		String d = String.valueOf(day);
		return (day < 10 ? "0" + d : d);
	}

	/** Sets a new date for the object using the elapsed time */
	public void setDate(long elapsedTime) {
		GregorianCalendar calander = new GregorianCalendar();
		calander.setTimeInMillis(elapsedTime);
		year = calander.get(GregorianCalendar.YEAR);
		month = calander.get(GregorianCalendar.MONTH);
		day = calander.get(GregorianCalendar.DAY_OF_MONTH);
	} 
}