Swap elements of ArrayList in Java

//from   w ww . j  a  v  a  2s. c  o m
import java.util.ArrayList;
import java.util.Collections;

public class Main {
  public static void main(String[] args) {
    ArrayList<String> arrayList = new ArrayList<String>();

    arrayList.add("A");
    arrayList.add("B");
    arrayList.add("C");
    arrayList.add("D");
    arrayList.add("java2s.com");

    System.out.println(arrayList);
    Collections.swap(arrayList, 0, 4);
    System.out.println(arrayList);
  }
}