songservice.java

网络学习资源 Java编程思想_第4版_源代码

//: gui/flex/SongService.java
package gui.flex;
import java.util.*;

public class SongService {
  private List<Song> songs = new ArrayList<Song>();
  public SongService() { fillTestData(); }
  public List<Song> getSongs() { return songs; }
  public void addSong(Song song) { songs.add(song); }
  public void removeSong(Song song) { songs.remove(song); }
  private void fillTestData() {
    addSong(new Song("Chocolate", "Snow Patrol",
      "Final Straw", "sp-final-straw.jpg",
      "chocolate.mp3"));
    addSong(new Song("Concerto No. 2 in E", "Hilary Hahn",
      "Bach: Violin Concertos", "hahn.jpg",
      "bachviolin2.mp3"));
    addSong(new Song("'Round Midnight", "Wes Montgomery",
      "The Artistry of Wes Montgomery",
      "wesmontgomery.jpg", "roundmidnight.mp3"));
  }
} ///:~