This post originated from an RSS feed registered with .NET Buzz by John Papa. Original Post: Refactoring - OOP Example from VB.NET to C# Feed Title: John Papa Feed URL: /error.htm?aspxerrorpath=/blogs/john.papa/rss.aspx Feed Description: .NET Code Samples, Data Access, Patterns and Other Musings Latest .NET Buzz Posts Latest .NET Buzz Posts by John Papa Latest Posts From John Papa

OK, I don't want to leave out the C# developers from this VB.NET OOP example that Raymond posted recently. So here is one way to accomplish this code in C#.

public class foo
{
	public static Int32 GetNumberOfRequiredTokens(IPerson person)
	{
		return person.GetNumberOfRequiredTokens();
	}
}

public interface IPerson
{
	Int32 GetNumberOfRequiredTokens();
}

public abstract class Person : IPerson
{

	public Person()
	{
	}

	private Int32 baseTokenAmount = 1;

	protected Int32 Tokens
	{

		get
		{
			return baseTokenAmount;
		}

	}

	public abstract Int32 GetNumberOfRequiredTokens();
}

public class Child : Person
{
	public override Int32 GetNumberOfRequiredTokens()
	{
		return base.Tokens;
	}

}

public class Adult : Person
{
	public override Int32 GetNumberOfRequiredTokens()
	{
		return base.Tokens * 3;
	}

}

public class Infant : Person
{
	public override Int32 GetNumberOfRequiredTokens()
	{
		throw new TooYoungException();
	}

}

public class TooYoungException : Exception
{
}