Mega Code Archive
Four layers of class hierarchy
<![CDATA[
/*
* C# Programmers Pocket Consultant
* Author: Gregory S. MacBeth
* Email: gmacbeth@comporium.net
* Create Date: June 27, 2003
* Last Modified Date:
*/
using System;
namespace Client.Chapter_5___Building_Your_Own_Classes
{
public class MyMainClass3
{
static void Main(string[] args)
{
//The function called is based
//upon the type called by new.
A MyA = new D();
B MyB = new C();
MyA.Display(); //Calls D Display
MyB.Display(); //Calls C Display
// followed by B's Display //via the base keyword
}
}
class A
{
public virtual void Display()
{
Console.WriteLine("Class A's Display Method");
}
}
class B: A
{
public override void Display()
{
Console.WriteLine("Class B's Display Method");
}
}
class C: B
{
public override void Display()
{
Console.WriteLine("Class C's Display Method");
base.Display();
}
}
class D: C
{
public override void Display()
{
Console.WriteLine("Class D's Display Method");
}
}
}
]]>