Simple Swapping program in Java

public class Swapping {
    static void swap(int i,int j){
        int temp=i;
        i=j;
        j=temp;
        System.out.println("i = " + i + " j = " + j);
    }
    public static void main(String[] args){
        int i=1;
        int j=2;
        swap(i,j);
    }
}