Question

Write a java program to swap two different values.​

Answer 1

Answer:

-->with using third variable.

import java.util.*;  

class Swap_With

{  

   public static void main(String[] args)

{  

      int x, y, t;// x and y are to swap    

      Scanner in = new Scanner(System.in);  

      System.out.println("Enter the value of X and Y");  

      x = in.nextInt();  

      y = in.nextInt();  

      System.out.println("before swapping numbers: "+x +"  "+ y);  

      /*swapping */  

      t = x;  

      x = y;  

      y = t;  

      System.out.println("After swapping: "+x +"   " + y);  

      System.out.println( );  

   }    

}  

--> without using third variable.

class NO_THIRD

{  

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);  

}  

}  

hope it helps ☺