using System; public class MessagePrinter:IMessagePrinter { private String _message; public String Message { get { return _message; } set { _message = value; } } public MessagePrinter(String message){ Message = message; Console.WriteLine("MessagePrinter object created..."); } public MessagePrinter():this("Default MessagePrinter message"){ } public void PrintMessage(){ Console.WriteLine("MessagePrinter PrintMessage(): " + Message); } }