Week6 Collection

OUTPUT from Driver class

 ----jGRASP exec: java SongDriver

NumSongs = 7 / PlayList song limit = 12
songList[0] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[1] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[2] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[3] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[4] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[5] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[6] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>

NumSongs = 7 / PlayList song limit = 12
songList[0] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[1] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[2] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[3] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[4] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[5] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>
songList[6] = < Title: If You, Artist: Big Bang, Album: MADE, Track Length: 264000>


 ----jGRASP: operation complete.

Playlist.java

public class Playlist {

   private static Song[] songs;
   private static int count;
   private String playlistName;
   
   public Playlist() {
      songs = new Song[12];
      count = 0;
   }   
   public String getPlaylistName() {
      return playlistName;
   }
   public void setPlayListName() {
      this.playlistName = playlistName;
   }
               
   public void add(Song a) {
      if(count == songs.length) {
         System.out.println("ERROR: Collection is full. Songs were not added to the Playlist.");
      }
      songs[count] = a;
      count++;
   }   
   
   public Song get(int i) {
      if(count > i) {
        return songs[i];
      }
      else {
         return null;
      }
   }     
   public Song remove(String name) {
      boolean found = false;
      int indexToRemove = 0;
      while(indexToRemove < count && !found) {
         if(songs[indexToRemove].getName().equals(name)) {
            found = true;
         }
         else {
            indexToRemove++;
         }        
      }
      if(indexToRemove < count) {
         for(int from = indexToRemove + 1; from < count; from++) {
            songs[from-1] = songs[from];
         }
         songs[count-1] = null;
         count--;   
      }
      return null;   
   }   
   
   public static void print() {
      String result = "NumSongs = " + count
            + " / PlayList song limit = " + songs.length + "\n";

         for (int i=0; i<count; i++) {
            result += ("songList[" + i + "] = <"
                        + songs[i] + ">\n");
         }
      System.out.println(result.toString() + "\n");
   }   
   public int size() {
      return count;
   }
   public int totalTime() {
      int totalTime = 0;
      for (int i=0; i<count; i++) { 
         totalTime = songs[i].getLength();
      }      
      return totalTime;
   }
   public String formattedTotalTime() {
      long h, m, s;
      String lengthString;
      s = Song.length;
      m = s/60;
      s = s%60;
      h = m/60;
      m = m%60;
      lengthString = String.format("%02d",h) + ":" +
      String.format("%02d",m) + ":" +
      String.format("%02d",s);
      return lengthString;
   }
   public static void clear() {
      for (int i=0; i<songs.length; i++) {
         songs[i] = null;
         count = 0;
      }   
      return ;
   }
}   

Song.java

public class Song {

   private static String name;
   private static String artist;
   private static String album;
   private static int length;
   
   public Song(String songName, String artistName, String albumName, int trackLength) {
      setArtist(artistName);
      setName(songName);
      setAlbum(albumName);
      setLength(trackLength);
   }
   public void setName(String songName) {
      name = songName;
   }
   public static String getName() {
      return name;
   }
   public void setArtist(String artistName) {
      artist = artistName;
   }
   public static String getArtist() {
      return artist;
   }
   public void setAlbum(String albumName) {
      album = albumName;
   }
   public static String getAlbum() {
      return album;
   }
   public void setLength(int trackLength) {
      length = trackLength;
   }
   public static int getLength() {
      return length;
   }
        
}               
               

SongDriver

public class SongDriver {
   public static void main(String[] args) {
      Playlist one = new Playlist();
      
      Song song1 = new Song("Hotline Bling", "Drake", "Hotline Bing - Single", 267000);
      Song song2 = new Song("What Do You Mean?", "Justin Bieber", "What Do You Mean? - Single", 207000);
      Song song3 = new Song("Watch Me", "Silento", "Watch Me (Whip / Nae Nae) - Single", 185000);
      Song song4 = new Song("679", "Fetty Wap ft. Remy Boyz", "Fetty Wap", 185000);
      Song song5 = new Song("Can't Feel My Face", "The Weeknd", "Beauty Behind the Madness", 213000);
      Song song6 = new Song("Good for You", "Selena Gomez ft. A$AP Rocky", "Good for You - Single", 221000);
      Song song7 = new Song("If You", "Big Bang", "MADE", 264000);
      
      one.add(song1);               
      one.add(song2);               
      one.add(song3);                
      one.add(song4);                
      one.add(song5);               
      one.add(song6);                
      one.add(song7);
      
      Playlist.print();
      
      one.remove(new String ("679"));            
      one.remove("Watch Me");
      
      Playlist.print(); 
   }
}