Design a class named MyPoint to represent a point with x and y coordinates. The

Question

Design a class named MyPoint to represent a point with x and y coordinates. The class contains: - Two data fields x and y that represent the coordinates. - A no-arg constructor that creates a point (0, 0). - A constructor that constructs a point with specified coordinates. - Two get methods for data fields x and y, respectively. - A method named distance that returns the distance from this point to another 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. Implement the class. Write a test program that creates two points (0, 0) and (10, 30.5) and displays the distance between them.

Explanation / Answer

package org.students;

import java.util.Scanner;

import java.awt.Point;

public class Distance {

   private int pointX;

   private int pointY;

   public Distance(int x, int y)

   {

       pointX = x;

       pointY = y;

   }

   public int getX()

   {

       return pointX;

   }

   public int getY()

   {

       return pointY;

   }

   public double getDistance(Distance otherPoint)

   {

       int x = pointX - otherPoint.pointX;

       x = x * x;

       int y = pointY - otherPoint.pointY;

       y = y * y;

       double ddistance = Math.sqrt(x + y);

       return ddistance;

   }

   public static void main(String[] args) {

       Scanner console = new Scanner(System.in);

       System.out.print("Enter the coordinates for point 1: (x and y) ");

       int pointX = console.nextInt();

       int pointY = console.nextInt();

       Distance pointp1 = new Distance(pointX, pointY);

       System.out.print("Enter the coordinates for point 2: (x and y) ");

       int pointX2 = console.nextInt();

       int pointY2 = console.nextInt();

       Distance pointp2 = new Distance(pointX2, pointY2);

       System.out.println("The Distance between the two points is: "
               + pointp1.getDistance(pointp2));

   }

}

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output:Enter the coordinates for point 1: (x and y) 4 5
Enter the coordinates for point 2: (x and y) 7 8
The Distance between the two points is: 4.242640687119285

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