Java Program to Swap Two Numbers

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

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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 :

1

2

The two integers are 1 2

The interchanged integers are 2  1

Java Program to Swap Two Numbers

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Just copy paste the code into the class file of Bluej compiler. Change the class name according to your's. 

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