Swap Numbers Without Using Third Variable in Java


/*Swap Numbers Without Using Third Variable Java */

import java.io.*;
class swap {

public static void main(String[] args) {

int num1 = 10;
int num2 = 20;

System.out.println(“Before Swapping”);
System.out.println(“Value of num1 is :” + num1);
System.out.println(“Value of num2 is :” +num2);

//add both the numbers and assign it to first
num1 = num1 + num2;
num2 = num1 – num2;
num1 = num1 – num2;

System.out.println(“Before Swapping”);
System.out.println(“Value of num1 is :” + num1);
System.out.println(“Value of num2 is :” +num2);
}
}

output:

sw1

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