using System;

​

public class Program

{

    public static void Main()

    {

        var turtle = new Animal();

        var giraffe = new Animal();

    }

}

​

class Animal

{

    // * A static constructor is executed only once,

    //   when a class is first accessed.

    // * A static constructor cannot have any access modifiers

    // * A static constructor cannot have any parameters

    static Animal()

    {

        Console.WriteLine("Animal initialized");

    }

​

    // Instance constructor, this is executed every time the class is created

    public Animal()

    {

        Console.WriteLine("Animal created");

    }

​

    public static void Yawn()

    {

        Console.WriteLine("Yawn!");

    }

}

​