using System;

 class Pet

{

        private string name;

        private string type;

        private int age;

        public string Name

        {

            get{return name;}

            set

            {

                if(!string.IsNullOrWhiteSpace(value))

                    name=value;

                else

                    name="Неизвестен";

            }

        }

        public string Type

        {

            get{return type;}

            set

            {

                if(value=="куче" || value =="котка" || value == "птица")

                   type= value;

                   else

                   type="Неопределен";

                   }

            }

                   public int Age

                   {

                       get{return age;}

                       set

                       {

                           if(value>=0)

                               age=value;

                           else

                               age=0;

                       }

                   }

                   public void PrintInfo()

                   {

                       Console.WriteLine("Име:{0},Вид:{1},Възраст:{2},Name,Type,Age");

                   }

                   }

                   public class Program

                   {

                      public static void Main()

                      {

                          Pet myPet=new Pet();

                          myPet.Name="Боби";

                          myPet.Type="куче";

                          myPet.Age=5;

                          myPet.PrintInfo();

                      }

                   }

​

​