Chapter 7, Problem 3P

Method definition for “rotateRight”:

/* Method definition for "rotateRight" */

public static void rotateRight(int[] array)

{

    /* Assign rotate value to "2" */

    final int ROTATE_VALUE = 2;

/* Rotate the content of array to the right by two slots using "for" loop */

    for(int rotate = 0; rotate < ROTATE_VALUE; rotate++)

    {

        /* Copy the last value into "t" variable */

        int t = array[array.length - 1];

/* The "for" loop will performs until the value of "idx" is "0" */

for (int idx = array.length - 2; idx >= 0; idx--)

        {

/* Copy the elements from last to the start */

            array[idx+1] = array[idx];

        }

        /* Copy the value of "t" to first location */

        array[0] = t;

    }

}

Complete program:

The complete executable code for after implementing the method “rotateRight” is given below:

//Import required package

import java.util.*;

//Define "RotationTest" class

public class RotationTest

{

    //Define main function

    public static void main(String[] args)

    {

        //Create object for scanner class

        Scanner input = new Scanner(System.in);

        /* Display user prompt statement */

System.out.print("Enter the number of elements: ");

        /* Read the number of elements from user */

        int totalElements = input.nextInt();

        /* Create an array for inputs */

        int arrayValues[] = new int[totalElements];

        /* Display user prompt statement */

        System.out.print("Enter array elements: ");

/* Read the array values one by one using "for" loop */

for(int idx = 0; idx < arrayValues.length; idx++)

        {

            /* Read values from user */

            arrayValues[idx] = input.nextInt();

        }

        /* Display statement */

System.out.println("Content of array before rotate right by 2 slots ");

        /* Call the method "displayValues" */

        displayValues(arrayValues);

        /* Call the method "rotateRight" */

        rotateRight(arrayValues);

        /* Display statement */

System.out...