import java.util.*;
public class ArrayListDemo{
  public static void main(String args[])
  {
    ArrayList al = new ArrayList();
    
    for(int i=0;i<=3;i++)  al.add("String-"+i);
    System.out.println(al);
    al.add(0,"String-N0");
    System.out.println(al);
    System.out.println(al.get(1));
    System.out.println(al.indexOf("String-0"));
    al.remove(1);
    System.out.println(al.get(1));
    System.out.println(al.indexOf("String-0"));
    System.out.println(al);
  }
}