Question

Write a program to input two unequal numbers. Display the numbers after swapping their values in the variables without using a third variable. 

Sample Input: a = 76, b = 65
Sample Output: a = 65, b = 76

Answer 1

import java.util.*;
public class U5_Q6
{public static void main(String args[]) 
{Scanner in = new Scanner(System.in)
int a, b; 
System.out.println("Enter the two numbers"); 
a = in.nextlnt(); 
b = in.nextlnt();
System.out.println("Before Swapping \n a = " + a + " b = " + b)
a = a + b;
b = a − b; 
a = a − b; 
System.out.println("After Swapping \n a = " + a + " b = " + b); 
}}