Chapter 5.4, Problem 23SCP

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)

    {

        //create an object for "Scanner" class

        Scanner console = new Scanner(System.in);

        //display the statement

        System.out.print("Type your age: ");

        //check the condition

        while (!console.hasNextInt())

        {

            //get the input from the user

            console.next();

            //display the statement

            System.out.print("Type your age: ");

        }

        //get the input from the user

        int age = console.nextInt();

        if (age < 0)

        {

            //display the statement

            System.out.print("Type your age: ");

            //get the input from the user

            age = console.nextInt();

        }

        //display the statement

        System...