Where you used interface in your .net project?

Anjali Khan

Dear frnds I know about an interface but here I want to know where we used interface in our project.i found in Many website but didn't understand properly.plesse provide example with explain where you people used interface in your project? Please help me on this because many interviewer asked me but not didn't gave the ans in proper way.

4 Replies

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Gautam Parmar9y ago
Hi Anjali,

Interface allows you to achieve multiple class inheritance.. Here are two Interface IA and IB which are inharited with there respective class.
interface IA
    {
        void AMethod();
    }
    interface IB
    {
        void BMethod();
    }
    class A : IA
    {
        public void AMethod()
        {
            Console.WriteLine("A");
        }
    }
    class B : IB
    {
        public void BMethod()
        {
            Console.WriteLine("A");
        }
    }
Now to achieve multiple class inheritance will need to create master class which AB that class will have object of A & B Class and inherited with both interface
class AB : IA, IB
    {
        A a = new A();
        B b = new B();

        public void AMethod()
        {
            a.AMethod();
        }

        public void BMethod()
        {
            b.BMethod();
        }
    }
So now AB Class can use method of both class
public static void Main()
        {
            AB ab = new AB();
            ab.AMethod();
            ab.BMethod();
        }
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Sundaram Subramanian9y ago
If you want to do Multiple Inherit, then you have to use Interface.

http://www.dotnetfunda.com/forums/show/2476/in-live-projectswhere-we-will-use-abstract-class-and-interface-classes
https://www.codeproject.com/Questions/341625/Real-time-example-of-interface
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Ankit Sharma9y ago
Hi,
You can get better understanding of interface on this link

http://www.c-sharpcorner.com/UploadFile/sekarbalag/interface-best-example-in-csharp/

https://dzone.com/articles/c-interfaces-what-are-they-and
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Sandy Bhardwaj9y ago
http://www.dotnetfunda.com/forums/show/2476/in-live-projectswhere-we-will-use-abstract-class-and-interface-classes

https://www.codeproject.com/Questions/341625/Real-time-example-of-interface

// Check this link ..........
0