RickyWh

using System;

namespace RickyTest
{
	public class Starter
	{
		public static void Main()
		{
			ZClass [] zArray={
				new ZClass(),
				new YClass(),
				new XClass(),
				new WClass(),
				new YClass(),
				new ZClass() };
			
			foreach(ZClass obj in zArray)
			{
				obj.MethodA();
			}
		}
	}
	
	public class ZClass
	{
		public virtual void MethodA()
		{
			Console.WriteLine("ZClass.MethodA");
		}
	}
	
	public class YClass: ZClass
	{
		public override void MethodA()
		{
			Console.WriteLine("YClass.MethodA");
		}
	}
	
	public class XClass: YClass
	{
		public new virtual void MethodA()
		{
			Console.WriteLine("XClass.MethodA()");
		}
	}
	
	public class WClass: XClass
	{
		public override void MethodA()
		{
			Console.WriteLine("WClass.MethodA");
		}
	}
}