Add an element to specified index of ArrayList

描述

Add an element to specified index of ArrayList

例子

import java.util.ArrayList;
 
public class Main {
 
  public static void main(String[] args) {
    ArrayList arrayList = new ArrayList();
   /* w w w.21d oc .net*/
    arrayList.add("1");
    arrayList.add("2");
    arrayList.add("3");
   
    arrayList.add(1,"INSERTED ELEMENT");
    System.out.println("ArrayList contains...");
    for(int index=0; index < arrayList.size(); index++)
      System.out.println(arrayList.get(index));
   
  }
}