package poo; public class SimpleAlbumClass extends AbstractAlbumClass implements SimpleAlbum { private String artist; public SimpleAlbumClass(String code,String title,double price,String artist,double duration){ super(code,title,price); super.setDuration(duration); this.artist=artist; } public String getArtist(){ return artist; } public int compareTo(SimpleAlbum other){ return this.getArtist().compareTo(other.getArtist()); } public double getDuration() { return duration; } }