gistfile1.txt

  private def getMonthLetterForWeek(yearAndWeek: YearAndWeek): String = {
    val day =  yearAndWeek.firstDay
    val currentDayCalendar = day.toCalendar(Locale.getDefault())
    val weekOfMonth = currentDayCalendar.get(Calendar.WEEK_OF_MONTH)
    if (weekOfMonth < 5) {
      val shortMonths = new DateFormatSymbols(Locale.ENGLISH).getShortMonths
      val weekOfMonthIndex = weekOfMonth - 2
      if (weekOfMonthIndex < 0) "" else (shortMonths(day.getMonthOfYear - 1)(weekOfMonthIndex) + "").toUpperCase
    } else { "" }
  }