class CD extends Article {
  
  // additional Attributes
  String artist;
  String [] songs;

  
  // Methods
  void showInfo() {
    super.showInfo(); // article show info
    System.out.println ("Type:\tCD");
    System.out.println ("Artist:\t"+artist);
    // maybe we could print the songs here
  }
  
  // Constructor
  CD (int code, String artist, int price)  { 
    super(code, artist, price); // use article constructor
    this.artist = new String(artist);
    this.songs = new String[20];
  } 

}