java - 查找最后发薪日期

Question

我写了这个简单的方法来给我每个发薪期的日期，但从一月一日起它就不再起作用了。我真的不确定这里出了什么问题。它不会返回任何内容。

   public static List<Date> getPayPeriodDatesSinceStartOfYear() {

        Calendar cal = new GregorianCalendar();
        cal.add(Calendar.WEEK_OF_YEAR, 1);

        cal.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
        cal.set(Calendar.WEEK_OF_YEAR, 2);

        Calendar currentDate = new GregorianCalendar();
        currentDate.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
        int counter = 2;
        List<Date> dates = new ArrayList<Date>();
        while ((cal.getTime().compareTo((currentDate.getTime())) <= 0)) {
            dates.add(cal.getTime());
            counter += 2;
            cal.set(Calendar.WEEK_OF_YEAR, counter);
        }
        java.util.Collections.reverse(dates);
        if(dates.isEmpty()){
            JOptionPane.showMessageDialog(null, "NO DATES, SOMETHING IS WRONG!");
        }
        return dates;
    }

Answer 1

您的 while 条件未得到满足，您设置它的方式 cal 大于 currentDate 因此 while 循环永远不会发生。