Swap Without Variable Example Java Program

Definition

Swap Without Variable Example Program

import java.util.Scanner;
 
class SwapWithoutVariable{
	public static void main(String args[]){
		int num1,num2;
		System.out.println("Enter num1 and num2");
		Scanner in = new Scanner(System.in);
		num1 = in.nextInt();
		num2 = in.nextInt();
		System.out.println("Before Swapping num1 = "+num1+" and num2 = "+num2);
		num1 = num1 + num2;
		num2 = num1 - num2;
		num1 = num1 - num2;
		System.out.println("After Swapping num1 = "+num1+" and num2 = "+num2);
	}
}

Sample Output

Output is:
Enter num1 and num2
67
78
Before Swapping num1 = 67 and num2 = 78
After Swapping num1 = 78 and num2 = 67