polimorfizmusperson

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace poliformizmusperson
{
    class Person
    {
        protected string firstName;
        protected string lastName;
        public Person()
        {
        }

        public Person(string fn, string ln)
        {
            firstName = fn;
            lastName = ln;
        }
        public void displayFullName()
        {
            Console.WriteLine("{0} {1}", firstName, lastName);
        }
    }

    class Employe : Person
    {
        public ushort hireYear;
        public Employe()
            : base()
        {
        }
        public Employe(string fn, string ln)
            : base(fn, ln)
        {
        }
        public Employe(string fn, string ln, ushort hy)
            : base(fn, ln)
        {
            hireYear = hy;
            firstName = fn;
            lastName = ln;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Employe me = new Employe("Zsótár", "Csaba", 1983);
            Person Brad = me;
            me.displayFullName();
            Console.WriteLine("Year hired: {0}", me.hireYear);
            Brad.displayFullName();
            Console.ReadKey();
        }
    }
}