Interface Inheritance

Aslesh

Hi i am inheriting two interfaces A, B which has a method with common name called codeproject. When i am trying to call that method which interface method does it call? or how can we call a patricular method. interface A { public void codeproject(); } interface B { public void codeproject(); } public class code : A, B { } code c = new code(); c.codeproject() // which method is it calling ? what do i need to do call a particular method? Santhapur

DaveyM69

neither as the codeproject method is implemented in the class, not the interface. you can implement each interface explicitly if you wish by using

public class code : A, B
{

void A.codeproject()
{
}
void B.codeproject()
{
}

}

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

Aslesh

what if we call like code c = new code(); c.Codeproject(); which one does it call?

DaveyM69

I think you are misunderstanding interfaces. An interface has no implementation. c.CodeProject simply calls the method CodeProject() in the class code - nothing is ever 'called' in an interface.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

Aslesh

Ok Thanks I got you.. Santhapur

Robert C Cartaino

Try this and see if the previous answer makes any more sense:

using System;

interface IA
{
// There is no code here. Just a "requirement" that you need // to implement a method called CodeProject().
void CodeProject();
}

interface IB
{
// IB also says that you are required to implement a method called CodeProject().
void CodeProject();
}

public class Code : IA, IB
{
// By inheriting from IA (or IB), what you are saying is that // you are required to implement a method called CodeProject(). // IA and IB just happen to have the same requirement. // Here it is.
public void CodeProject()
{
Console.WriteLine("This is the CodeProject() method.");
}
}

class Program
{
static void Main(string[] args)
{
Code c = new Code();
c.CodeProject();
}
}

A couple of quick notes: Interfaces are named with a leading letter "I", by convention (for example, IDisposable). Methods defined in interfaces are automatically public. You cannot use the public modifier in the interface/method definition. Enjoy, Robert C. Cartaino

Robert C Cartaino

Oops, too slow. Already answered...