Swapping Two Number In Java Programming

import java.util.*;

public class SwapingNo
{

public static void main(String[] args)
{
Scanner scn=new Scanner(System.in);
System.out.println("Type two no. for swaping");
System.out.println("enter first no.");
int n=scn.nextInt();
System.out.println("enter second no.");
int m=scn.nextInt();

n=n*m;
m=n/m;
n=n/m;
System.out.println("after swaping 1st no is = "+n);
System.out.println("after swaping 2nd no. is  = "+m);

}

}