using System;

using System.Collections;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        ArrayList arrList = new ArrayList();

        arrList.Add(1);

        arrList.Add("Madhu");

        ArrayList arrList1 = new ArrayList(){2,3,"Test"};

        //addrange takes Icollection object

        arrList.AddRange(arrList1);

        //how many elements this arraylist can contain

        arrList.Capacity = 10;

        ArrayList arrList2 = new ArrayList();

        arrList2.Add(4);

        arrList2.Add("Madhu Saini");

        arrList.InsertRange(2,arrList2);

        foreach(var a in arrList)

        {

            Console.WriteLine(a.ToString());

        }

        //clears the arraylist

        arrList.Clear();

    }

}