Get or set the element at the specified index in CSharp

using System;/* www.j ava2  s .  c o m*/
using System.Collections;

public class Example
{
    public static void Main()
    {
        ArrayList stringList = new ArrayList();

        stringList.Add("a");
        stringList.Add("abc");
        stringList.Add("abcdef");
        stringList.Add("abcdefg");

        Console.WriteLine(stringList[2]);
        stringList[2] = "java2s.com";
        Console.WriteLine(stringList[2]);

    }
}