Yo_21Mb

using System;

namespace Animal
{
    public abstract class Animal
    {
        //Attributes
        private String name;
        private int weigth;
        private String sound;
        public String Name { get { return name; } set { name = value; } }
        public int Weigth { get { return weigth; } set { weigth = value; } }
        public String Sound { get { return sound; } set { sound = value; } }

        //Constructors
        public Animal()
        {
            this.Name = "Unnamed";
            this.Weigth = 0;
            this.Sound = "Unknown";
        }
        public Animal(String name, int weigth, String sound)
        {
            this.Name = name;
            this.Weigth = weigth;
            this.Sound = sound;
        }

        //Methodes
        String says()
        {
            return Sound;
        }
    }
    public class Cow : Animal
    {

        public Cow(String Name, int Weigth, String Sound)
        {
            this.Name = Name;
            this.Weigth = Weigth;
            this.Sound = Sound;
        }
        public Cow(String Name, int Weigth)
        {
            this.Name = Name;
            this.Weigth = Weigth;
            this.Sound = "mooo";
        }
        public Cow(String Name)
        {
            this.Name = Name;
            this.Weigth = 0;
            this.Sound = "mooo";
        }
        public Cow()
        {
            this.Name = "Unnamed";
            this.Weigth = 0;
            this.Sound = "mooo";
        }
        String says()
        {
            return Sound = "Mooo";
        }

    }
    public class Snake : Animal
    {
        public Snake(string name, int weigth, string sound) : base(name, weigth, sound)
        {
            sound = "shhh";
        }
    }
    public class Pig : Animal
    {
        public Pig(string name, int weigth, string sound) : base(name, weigth, sound)
        {
            sound = "oink";
        }
    }

    static void Main(string[] args)
    {
        Cow animal1 = new Cow("Bessy", 0, "MOOOOOO");
        Console.WriteLine(animal1.Name + " " + animal1.Weigth + " " + animal1.Sound);
    }
}