Question

-t II - CTEC 120 Review [ 10 points ] 1) Write the Java code that swaps the value of two integer variables.

Answer 1

import java.util.Scanner;
public class Main
{
   public static void main(String[] args)
   {
   //variable declaration
   int num1, num2, temp;
   Scanner input = new Scanner(System.in);
   //display message on the computer screen
   System.out.print("Enter the first integer: ");
num1 = input.nextInt();
//display message on the computer screen
System.out.print("Enter the second integer: ");
num2 = input.nextInt();
//swap the number using third variable
temp = num1;
num1 = num2;
num2 = temp;
//display message on the computer screen
System.out.println("\nAfter Swapping");
//display the first number on the computer screen
       System.out.println("\nThe first integer is: " + num1);
       //display the second number on the computer screen
       System.out.println("The second integer is: " + num2);
   }
}

OUTPUT:

Enter the first integer: 10 Enter the second integer: 20 After Swapping The first integer is: 20 The second integer is: 10