using System;

​

public interface IAnimal

{

    static IAnimal()

    {

        Console.WriteLine("Static IAnimal");

    }

​

    public void Speak();

}

​

class Animal : IAnimal

{

    static Animal()

    {

        Console.WriteLine("Static Animal");

    }

​

    public Animal()

    {

    }

​

    public void Speak()

    {

        Console.WriteLine("Animal speaks");

    }

}

​

class Dog : Animal

{

    public void Speak() // Method hiding using 'new'

    {

        Console.WriteLine("Dog barks");

    }

}

​

class Program

{

    static void Main()

    {

        IAnimal animal = new Animal();

        animal.Speak(); // Output: Animal speaks

        Dog dog = new Dog();

        dog.Speak(); // Output: Dog barks

    }

}