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));