namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter07.Listing07_01
{
    using System;

    public class PdaItem
    {
        public string Name { get; set; }
        public DateTime LastUpdated { get; set; }
    }

    // Definiowanie klasy Contact pochodnej od PdaItem.
    public class Contact : PdaItem
    {
        public string Address { get; set; }
        public string Phone { get; set; }
    }
}
