using System;

using System.Collections;

​

public class Program

{

    public static void Main()

    { 

        var count = 1;

        // the value of count is copied and boxed

        object countObject = count;

        count += 1; // countObject is still 1

        // the value of countObject (1) is unboxed

        // and copied to count

        count = (int)countObject;

        var boxedInts = GetListWithBoxedInts();

        var boxedInt = boxedInts[1];

        var unBoxedInt = (int)boxedInt; // Unbox int, to access its value

        Console.WriteLine(unBoxedInt);

    }

    public static ArrayList GetListWithBoxedInts()

    {

        var integer = 2;

        object boxedInteger = integer; // Box int, so it can be added to ArrayList

        var arrayList = new ArrayList();

        arrayList.Add(boxedInteger);

        arrayList.Add(boxedInteger);

        arrayList.Add(boxedInteger);

        arrayList.Add(boxedInteger);

        return arrayList;

    }

}