(The MyPoint class) Design a class named MyPoint to represent a point with x- and y-coordinates. The class contains:

/*********************************************************************************
* (The MyPoint class) Design a class named MyPoint to represent a point with     *
* x- and y-coordinates. The class contains:                                      *
*                                                                                *
* ■ The data fields x and y that represent the coordinates with getter           *
*   methods.                                                                     *
* ■ A no-arg constructor that creates a point (0, 0).                            *
* ■ A constructor that constructs a point with specified coordinates.            *
* ■ A method named distance that returns the distance from this point to a       *
*   specified point of the MyPoint type.                                         *
* ■ A method named distance that returns the distance from this point to         *
*   another point with specified x- and y-coordinates.                           *
*                                                                                *
* Draw the UML diagram for the class and then implement the class. Write a test  *
* program that creates the two points (0, 0) and (10, 30.5) and displays the     *
* distance between them.                                                         *
*********************************************************************************/
public class Exercise_10_04 {
	/** Main method */
	public static void main(String[] args) {
		// Create two points
		MyPoint point1 = new MyPoint();
		MyPoint point2 = new MyPoint(10, 30.5);

		// Display the distance between point1 and point2
		System.out.println("The distance between (" 
			+ point1.getX() + ", " + point1.getY() + ") and ("
			+ point2.getX() + ", " + point2.getY() + ") is: " + 
			point1.distance(point2));
	}
}

MyPoint.java 

/**********************************
*            MyPoint              *
*---------------------------------*
* -x: double                      *
* -y: double                      *
* +MyPoint()                      *
* +MyPoint(x: double, y: double)  *
* +getX(): double                 *
* +getY(): double                 *
* +distance(myPoint: MyPoint)     *
* +distance(x: double, y: double) *
**********************************/

// Implement MyPoint class
public class MyPoint {
	// Data fields
	private double x;
	private double y;

	/** Constructor that creates a point (0, 0) */
	MyPoint() {
		this(0, 0);
	}

	/** Constructs a point with specified coordinates */
	MyPoint(double x, double y) {
		this.x = x;
		this.y = y;
	}

	/** Return x */
	public double getX() {
		return x;
	}

	/** Return y */
	public double getY() {
		return y;
	}

	/** Returns the distance from this point to 
   *   a specified point of the MyPoint type */
   public double distance(MyPoint myPoint) {
   	return Math.sqrt(Math.pow(myPoint.getX() - x, 2) + 
   			 Math.pow(myPoint.getY() - y, 2));
   }

   /** Returns the distance from this point to another
 	*   point with specified x- and y-coordinates. */
 	public double distance(double x, double y) {
 		return distance(new MyPoint(x, y));
 	}
}