.NET Interview questions for Interfaces:- If A class inherits from multiple interfaces and the interfaces have same method names. How can we provide different implementation?.

Explicit Interface Implementation

Implementing multiple interfaces can sometimes result in a collision between member signatures. You can resolve such collisions by explicitly implementing an interface member. Consider the following example:

interface I1 { void Foo(); }

interface I2 { int Foo(); }

public class Widget : I1, I2

{

    public void Foo()

    {

        Console.WriteLine("Widget's implementation of I1.Foo");

    }

    int I2.Foo()

    {

        Console.WriteLine("Widget's implementation of I2.Foo");

        return 42;

    }

}