Java Program to Swap Two Numbers

To swap two numbers means to interchange the data of two variables. We have used a third variable to do this interchange or swaping.
For eg, Before swap: a=1 b=2
After swap: a=2 b=1

-------------------------------------------------------------------------------------------------

import java. util.*;

class Interchange

{ public static void main()

{ Scanner Sc=new Scanner(System.in);

System.out.println("Enter two numbers :");

int c=0;

int a=Sc.nextInt();

int b=Sc.nextInt();

{ System.out.println("The two integers are "+a+" "+b);

}

{ c=a;

a=b;

b=c;

{ System.out.println("The interchanged integers are "+a+" "+b); } } } }

Output: Enter two numbers :

The two integers are 1 2

The interchanged integers are 2 1