Chapter 15, Problem 5E

Explanation of Solution

Adding the “runningTotal” methods 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 "runningTotal" method

    public ArrayIntList runningTotal()

    {

        //create an object for the "ArrayIntList" class

ArrayIntList result = new ArrayIntList(elementData.length);

        //check the "size" is greater than 0

        if (size > 0)

        {

            //call the method

            result.add(elementData[0]);

            //iterate "i" until reaches its size

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

            {

/*call the method and find the result*/

result...