Chapter 8.1, Problem 4SCP

Explanation of Solution

Given Program:

//import the header file

import java.util.*;

//definition of "ReferenceMystery3" class

public class ReferenceMystery3

{

    //definition of main method

    public static void main(String [] args)

    {

/*declare the required variables and assign the values*/

        int a = 7;

        int b = 9;

        //create the objects for the "Point" class

        Point p1 = new Point (2, 2);

        Point p2 = new Point (2, 2);

        //call the method

        addToXTwice (a, p1);

        //display the values

System.out.println(a + " " + b + " " + p1.x + " " + p2.x);

        //call the method

        addToXTwice (b, p2);

        //display the values

System.out.println(a + " " + b + " " + p1.x + " " + p2...