Vector Swap in java pgm

Vector Swap

import java.util.Collections;

import java.util.Vector;

public class Main

{

 public static void main(String[] args)

{

      Vector v = new Vector();

      v.add("1");

      v.add("2");

      v.add("3");

      v.add("4");

      v.add("5");

      System.out.println(v);

      Collections.swap(v, 0, 4);

      System.out.println("After swapping");

      System.out.println(v);

   }

}