using System;

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