/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
//
// Virtual.cs -- Demonstrates the use of a virtual method to override
// a base class method.
//
// Compile this program with the following command line:
// C:>csc Virtual.cs
namespace nsVirtual
{
using System;
public class VirtualclsMain
{
static public void Main ()
{
clsBase Base = new clsBase();
clsFirst First = new clsFirst();
clsSecond Second = new clsSecond();
Base.Show();
First.Show();
Second.Show ();
}
}
class clsBase
{
public void Show ()
{
Describe ();
}
virtual protected void Describe ()
{
Console.WriteLine ("Called the base class Describe() method");
}
}
class clsFirst : clsBase
{
override protected void Describe ()
{
Console.WriteLine ("Called the derived class Describe() method");
}
}
class clsSecond : clsBase
{
}
}
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