targetLevelsList.set(bucket, new Double(value)); }
  public void setTarget(int bucket, double value) {    // The intention of the List is to hold values for the buckets    // that have target levels and hold nulls for those buckets that    // do not have a target level    int len = targetLevelsList.size();    if (bucket >= len) {      for (int i=len; i < bucket+20; i++) {	targetLevelsList.add(null);      }    }    targetLevelsList.set(bucket, new Double(value));  }