using System;

public class Program

{

    public static void Main()

    {

        var perro1 = new Dog();

        perro1.Bark();

    }

    // Class declaration

    public class Dog

    { // Opening bracket of the class body

        // Field declaration

        private string name;

        // Constructor declaration (peremeterless empty constructor)

        public Dog()

        {

        }

        // Another constructor declaration

        public Dog(string name)

        {

            this.name = name;

        }

        // Property declaration

        public string Name

        {

            get { return name; }

            set { name = value; }

        }

        // Method declaration (non-static)

        public void Bark()

        {

            Console.WriteLine("{0} said: Wow-wow!",

            name ?? "[unnamed dog]");

        }

    } // Closing bracket of the class body

​

}