Java获取某段时间内周几的日期

 		/**
     * 获取某段时间内周几的日期，比如周一、周二...
     * @param beginDate 开始日期
     * @param endDate 结束日期
     * @param weekDays 周几-可指定多个。1－6代表周一到周六,0代表周日
     * @return 返回日期集合
     */
    public static List<String> getDayOfWeekWithinDateInterval(String beginDate, String endDate, int... weekDays{
        SimpleDateFormat formater = new SimpleDateFormat("yyyy-MM-dd");
        List<String> dateResult = new ArrayList<>();
        Calendar cal = Calendar.getInstance();
        String[] dateInterval = {beginDate, endDate};
        Date[] dates = new Date[dateInterval.length];
        for (int i = 0; i < dateInterval.length; i++) {
            String[] ymd = dateInterval[i].split("[^\\d]+");
            cal.set(Integer.parseInt(ymd[0]), Integer.parseInt(ymd[1]) - 1, Integer.parseInt(ymd[2]));
            dates[i] = cal.getTime();
        }
        for (Date date = dates[0]; date.compareTo(dates[1]) <= 0; ) {
            cal.setTime(date);
            for (int weekDay : weekDays) {
                if (cal.get(Calendar.DAY_OF_WEEK) - 1 == weekDay) {
                    String format = formater.format(date);
                    dateResult.add(format);
                }
            }
            cal.add(Calendar.DATE, 1);
            date = cal.getTime();
        }
        return dateResult;
    }

    
    public static void main(String[] args) {
        List<String> dayOfWeekWithinDateInterval = getDayOfWeekWithinDateInterval("2023-05-15", "2023-06-19", 1,4);
        System.out.println(dayOfWeekWithinDateInterval);
      
      List<String> dayOfWeekWithinDateInterval = getDayOfWeekWithinDateInterval(
        				args[0],
                args[1], 
                Arrays.stream(args[2].split(","))
                        .map(Integer::parseInt)
                        .toArray(Integer[]::new));
        System.out.println(dayOfWeekWithinDateInterval);
    }