Swapping two numbers without using third variable
Program:
import java.util.Scanner;
public class Swapping
{
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("Enter the first number: ");
int n1 = in.nextInt();
System.out.print("Enter the second number: ");
int n2 = in.nextInt();
System.out.println("Before swapping value of first number: "+n1+" and second number: "+n2);
if(n1<n2)
{
n1=n1+n2;
n2=n1-n2;
n1=n1-n2;
}
else
{
n2=n2+n1;
n1=n2-n1;
n2=n2-n1;
}
System.out.println("After swapping value of first number: "+n1+" and second number: "+n2);
}
}
Output:
Enter the first number: 32
Enter the second number: 52
Before swapping value of first number: 32 and second number: 52
After swapping value of first number: 52 and second number: 32