A variable like userNum can store a value like an integer. Extend the given program to print userNum values as indicated. (1) Output the user's input. Enter integer: 4 You entered: 4

(2) Extend to output the input squared and cubed. Enter integer: 4 You entered: 4 4 squared is 16 And 4 cubed is 64!!

(3) Extend to get a second user input into userNum2. Output sum and product. Enter integer: 4 You entered: 4 4 squared is 16 And 4 cubed is 64!! Enter another integer: 5 4+5 is 9 4*5 is 20.

This program is written using Java programming language.

No comments were used; however, see explanation section for line by line explanation

import java.util.*;

public class Nums {

   public static void main(String args[]) {

     Scanner input = new Scanner(System.in);

     System.out.println("1.");

     int userNum;

     System.out.print("Enter Integer: ");

     userNum = input.nextInt();

     System.out.println("You entered: "+userNum);

     System.out.println("2.");

     System.out.print("Enter Integer: ");

     userNum = input.nextInt();

     System.out.println("You entered: "+userNum);

     System.out.println(userNum+" squared is "+(userNum * userNum));

     System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");

     System.out.println("3.");

     System.out.print("Enter Another integer: ");

     int userNum2 = input.nextInt();

     System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));

     System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));

   }

}

Explanation:

This enables the program accept inputs

     Scanner input = new Scanner(System.in);

This signifies the beginning of number 1

     System.out.println("1.");

Variable userNum is declared as type integer

     int userNum;

The line prompts the user for input

     System.out.print("Enter Integer: ");

The line accepts the input

     userNum = input.nextInt();

This line displays user input

     System.out.println("You entered: "+userNum);

This signifies the beginning of number 2

     System.out.println("2.");

This line prompts the user for input

     System.out.print("Enter Integer: ");

This line accepts input

     userNum = input.nextInt();

This line prints user input (as required in number 2)

     System.out.println("You entered: "+userNum);

This line calculates and prints the square of user input

     System.out.println(userNum+" squared is "+(userNum * userNum));

This line calculates and prints the cube of user input

     System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");

This signifies the beginning of number 3

     System.out.println("3.");

This line prompts the user for another integer value

     System.out.print("Enter Another integer: ");

This line accepts the input from the user

     int userNum2 = input.nextInt();

This line adds the two inputs by the user and displays the result

     System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));

This line multiplies the two inputs by the user and displays the result

     System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));

answer; i do believe its (d) modem;

this seems to be in the wrong category. but i'll take some free points my dude

posting this in wrong category will result in people seeing it who won't know the answer.