The meaning of Interface

Hellow :wave:

Can anyone please help me in understanding what is the meaning of Interface ? I've been reading the MSDN. But, I just can not understand them.

My understanding of Interface class is a class that can not be inherited (the exact opposite of abstract (c#) or mustInherit(VB), Is that rite ???

The what's the meaning of an Interface method ???


Thanks :)

An interface is a class that provides rules for classes that inherit from it.
You can inherit from multiple interfaces.

Maybe someone can enlighten us further by describing the difference between abstract and interface classes

An interface is just a template. It does not implement any functions at all. But it makes sure that every class that inherits from it, is BOUND to have the functions listed in the interface.


An abstract class means that you can not instansiate objects from it. It does not mean that you can't have non abstract functions in the class. But for an intercace all functions are implisitly abstract.


Summary:
- Interface does not have any implementation at all. An abstract class can have non abstract methods that has implementation.
- A class can inherit from as many interfaces as you want. But for simplicity, a class can only inherit from ONE abstract class.


Hope I got it all. Questions are welcome.
- ØØ -

Now that make sense. Thanks NoteMe

Hey, anyone know about a proper walkthrough that take you through the process of let you create a application using all the OOP concepts, and implementations of them in C#. I'm sure one will get a lot by searching, just asking if someone knows a good one.

I am not 100% sure what you are asking for. Is it tutorials? Well if so I have bookmarked what I skimmed through when I started C# a couple of months ago. It contains tutorials for all the big aspects of C#. And OOP.


http://www.csharp-station.com/Tutorial.aspx




- ØØ -

For example : example

Would like to find a tutorial / walkthrough kind of thing demonstrating using OOP at advanced level.