using System;

​

interface IFile

{

    void ReadFile();

}

​

interface IBinaryFile

{

    void OpenBinaryFile();

    void ReadFile();

}

​

class FileInfo : IFile, IBinaryFile

{

    void IFile.ReadFile() // if expilictly used and two interfaces have same method then its mandatory to call each interface's method otherwise simply dont use explicit then no need to implement same method twice for both interfaces.

    {

        Console.WriteLine("Reading Text File");

    }

     public void ReadFile() // no need to implement same method twice for both interfaces, just use implicit way.

    {

        Console.WriteLine("Reading Text File implicitly");

    }

​

    void IBinaryFile.OpenBinaryFile()

    {

        Console.WriteLine("Opening Binary File");

    }

​

    void IBinaryFile.ReadFile()

    {

        Console.WriteLine("Reading Binary File");

    }

​

    public void Search(string text)

    {

        Console.WriteLine("Searching in File");

    }

}

​

public class Program

{

    public static void Main()

    {

        IFile file1 = new FileInfo();

        IBinaryFile file2 = new FileInfo();

        FileInfo file3 = new FileInfo();

        file1.ReadFile(); // will execute ReadFile explicitly(for IFile Interface only) if available otherwise would execute implicit function(no matter who is whose interface.

        //file1.OpenBinaryFile(); //compile-time error: can only access IFile members 

        //file1.Search("abc"); //compile-time error: can only access IFile members 

        file2.OpenBinaryFile();

        file2.ReadFile(); // will execute ReadFile explicitly(for IBinaryFile Interface only) if available otherwise would execute implicit function(no matter who is whose interface.

        //file2.Search("abc"); //compile-time error: can only access IBinaryFile members 

        file3.Search("text to be searched");

        file3.ReadFile(); // will execute ReadFile method if and only if its implicitly implemented in class FileInfo.

        //file3.OpenBinaryFile(); //compile-time error: can only access FileInfo members, this method OpenBinaryFile is not implimented implictly so not available to FileInfo class reference.

    }

}

​