class cd extends item
{
    private String artist;
    private int numberoftracks;
    public cd(String title, int playingtime, String artist, int numberoftracks) //constructor
    {
        super(title,playingtime);
        this.artist=artist;
        this.numberoftracks=numberoftracks;
    }

    public void setComment(String comment)
    {
        super.setComment(comment);
    }
    public void setGotit(boolean gotit)
    {
        super.setGotit(gotit);
    }
    public String getArtist()
    {
        return artist;
    }
    public int getNumber()
    {
        return numberoftracks;
    }
    public void print()
    {
        System.out.println("Artist: " + artist);
        System.out.println("Number of tracks: " + numberoftracks);
    }
}