Question

Write a program in java to find the swapping of two numbers without using third variabla.

Sample Input : x-10 y-20 Output : x-20 y-10​

Answer 1

Answer:

class demo {  

public static void main(string arg[]) {  

 System.out.println("Before swapping");  

 int x = 10;  

 int y = 20;  

 System.out.println("value of x:" + x);  

 System.out.println("value of y:" + y);  

 system.out.println("After swapping");  

 x = x + y;  

 y = x - y;  

 x = x - y;  

 System.out.println("value of x:" + x);  

 System.out.println("value of y:" + y);  

}  

}  

Explanation: