using System;
using System.Collections;

public class Test
{
	class Hoge {
		public int x = 10;
	}
	
	public static void Main()
	{
		ArrayList testlist = new ArrayList();
		Hoge hogeinst = new Hoge();
		testlist.Add(hogeinst);
		
		Hoge thisClass = (Hoge)testlist[0];
		int y = thisClass.x;
		Console.WriteLine(y);
	}
}