Chapter 15, Problem 20E

Explanation of Solution

Adding the “rotate” method in “ArrayIntList” class:

//definition of "ArrayIntList" class

public class ArrayIntList

{

    //declare the required variables

    private int[] elementData;

    private int size;

    //refer the remaining methods in the textbook

    //definition of "rotate" method

    public void rotate()

    {

      //check "size" is greater than 0

        if (size > 0)

        {

            //declare the variable and set the value

            int first = elementData[0];

/*iterate "i" until it reaches "size" value*/

            for (int i = 1; i < size; i++)

            {

      ...