Chapter 5, Problem 12E

Explanation of Solution

Program:

//import the header file

import java.util.*;

//definition of "Main" class

class Main

{

    //definition of main method

    public static void main(String[] args)

    {

        //call the method

        printAverage();

    }

    //definition of "printAverage" method

    public static void printAverage()

    {

        //create an object for "Scanner" class

        Scanner console = new Scanner(System.in);

        //get the input from the user

        System.out.print("Type a number: ");

        int input = console.nextInt();

        // declare the variables with the values

        double sum = 0.0;

        int count = 0;

/*check the "input" is greater than or equal to 0*/

        while (input >= 0)

        {

            //increment the value

            count++;

            //calculate the sum

            sum = sum + input;

            //get the input

            System...