Question

write a program to input a two number and swap them without using third variable sample input a=20, b=34; output a=34, b=20;​

Answer 1

Answer:

import java.util.Scanner;

public class KboatNumberSwap

{

public static void main(String args[]) {

Scanner in = new Scanner(System.in);

System.out.println("Enter two unequal numbers");

System.out.print("Enter first number: ");

int a = in.nextInt();

System.out.print("Enter second number: ");

int b = in.nextInt();

a = a + b;

b = a - b;

a = a - b;

System.out.println("a = " + a + " b = " + b);

}

}