/*
A Programmer's Introduction to C# (Second Edition)
by Eric Gunnerson
Publisher: Apress L.P.
ISBN: 1-893115-62-3
*/
// 01 - Object-Oriented Basics\Polymorphism and Virtual Functions
// copyright 2000 Eric Gunnerson
using System;
public PolymorphismVirtualFunctions
{
public static void CallPlay(MusicServer ms)
{
ms.Play();
}
public static void Main()
{
MusicServer ms = new WinAmpServer();
CallPlay(ms);
ms = new MediaServer();
CallPlay(ms);
}
}
public abstract class MusicServer
{
public abstract void Play();
}
public class WinAmpServer: MusicServer
{
public override void Play()
{
Console.WriteLine("WinAmpServer.Play()");
}
}
public class MediaServer: MusicServer
{
public override void Play()
{
Console.WriteLine("MediaServer.Play()");
}
}
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