using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Bridge Pattern\n");

        Console.WriteLine(new Abstraction(new ImplementationA()).Operation());

        Console.WriteLine(new Abstraction(new ImplementationB()).Operation());

    }

}

​

class Abstraction

{

    IBridge bridge;

    public Abstraction(IBridge implementation)

    {

        bridge = implementation;

    }

​

    public string Operation()

    {

        return "Abstraction" + " <<< BRIDGE >>>> " + bridge.OperationImp();

    }

}

​

interface IBridge

{

    string OperationImp();

}

​

class ImplementationA : IBridge

{

    public string OperationImp()

    {

        return "ImplementationA";

    }

}

​

class ImplementationB : IBridge

{

    public string OperationImp()

    {

        return "ImplementationB";

    }

}