private static float calculateScore(final int[] playCounts){
  if (playCounts == null) {
    return 0;
  }
  float score=0;
  for (int i=0; i < Math.min(playCounts.length,NUM_WEEKS); i++) {
    score+=playCounts[i] * getScoreMultiplierForWeek(i);
  }
  return score;
}

private static float calculateScore ( final int [ ] playCounts ) { if ( playCounts == null ) { return 0 ; } float score = 0 ; for ( int i = 0 ; i < Math . min ( playCounts . length , NUM_WEEKS ) ; i ++ ) { score += playCounts [ i ] * getScoreMultiplierForWeek ( i ) ; } return score ; }
calculates the score of the song given the play counts
