Java示例矢量交换

import java.util.Collections;

import java.util.Vector;



public class Main {

   public static void main(String[] args) {

      Vector<String> v = new Vector<String>();

      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);

   }

}