inheritance

  • Thread starter Thread starter Tony Johansson
  • Start date Start date
T

Tony Johansson

Hello!

Assume I want to create a system for a shop which sell media products like
books, DV, DVD and games.

I wonder if a good solution would be to create an abstract class called
Product and then have derived classes
like DV, DVD, BOOKS and games .

//Tony
 
Hi Tiny,

This sounds like classic case where an abstract base class would be in
order. You could also throw in interfaces there as well.

public class DVD : Product, IVideo
 
Tony said:
Hello!

Assume I want to create a system for a shop which sell media products like
books, DV, DVD and games.

I wonder if a good solution would be to create an abstract class called
Product and then have derived classes
like DV, DVD, BOOKS and games .
Click to expand...

Yes, it is common example on inheritance. But, you also sell yellow
products, blue products and red products. Most likely you also sell
cheap products, expensive products and products on sale.

What I am trying to say is, if DV, DVD, Book and Game are only property
and you do not handle them any differently, there is no need for
inheritance. What about a book that comes with DVD (for example a book
for bird watchers, that has small video of each bird), is it a book or
DVD? Is is book or DVD or both (C# does not support multiple inheritance)?
 
Back
Top