using System;

// Interface

interface IAnimal 

{

  void animalSound(); // interface method (does not have a body)

}

​

// Pig "implements" the IAnimal interface

class Pig : IAnimal 

{

  public void animalSound() 

  {

    // The body of animalSound() is provided here

    Console.WriteLine("The pig says: wee wee");

  }

}

​

class Program 

{

  static void Main(string[] args) 

  {

    Pig myPig = new Pig();  // Create a Pig object

    myPig.animalSound();

  }

}