RatingPair ratingPair = new RatingPair();
RatingPair ratingPair = ratingPairs[i];
  private String[] findNewTracks(RatingPair[] ratingPairs, Map trackMap) {    List newTracks = new ArrayList();    for (int i = 0; i < ratingPairs.length; i++) {      RatingPair ratingPair = new RatingPair();      if (!trackMap.containsKey(ratingPair.trackId))        newTracks.add(ratingPair.trackId);    }    return (String[]) newTracks.toArray(new String[newTracks.size()]);  }