Question

我在java中有一个约会，我想为它添加一定的工作时间。

但是，它应该考虑一个工作周。

8 Hours days (8:00 to 16:00),

和

no work on weekends (Saturday/Sunday).

所以我有Date object给current time。我还有double，这是要添加到该日期的分钟数。这样做的最佳方式是什么？

I'm using Java 8.

一些例子：

在同一天工作：

Date date = new Date(2000, 1, 1, 8, 0); //so first of jan, 8:00. Let's assume this is a monday.
double minutes = 4 * 60;
Date newDate = addWorkingTime(date, minutes);
// newDate should be the same day, 12:00

多天工作：

Date date = new Date(2000, 1, 1, 14, 0); //so first of jan, 14:00. Let's assume this is a monday.
double minutes = 4 * 60;
Date newDate = addWorkingTime(date, minutes);
// newDate should be the next day, 10:00
// 2 hours on the first day, the next two hours of work on the next.

周末工作：

Date date = new Date(2000, 1, 5, 14, 0); //so fifth of jan, 14:00. Let's assume this is a friday.
double minutes = 8 * 60;
Date newDate = addWorkingTime(date, minutes);
// newDate should be the next monday, 14:00
// 2 hours on the first day, the next six hours of work the next monday.

谢谢！

Answer 1

您可以使用此方法：

public static LocalDateTime addWorkingMinutes(LocalDateTime date, long minutes) {
    if (date.getHour() < 8) {
      // Working day hasn't started. Reset date to start of this working day
      date = date.withHour(8).withMinute(0).withSecond(0);
    }

    // Take care of weekends
    if (date.getDayOfWeek() == DayOfWeek.SATURDAY) {
      date = date.plusDays(2);
    } else if (date.getDayOfWeek() == DayOfWeek.SUNDAY) {
      date = date.plusDays(1);
    }

    LocalDateTime endOfCurrentWorkingDay = date.withHour(16).withMinute(0).withSecond(0);

    // Get minutes from date to endOfCurrentWorkingDay
    long minutesCovered = ChronoUnit.MINUTES.between(date, endOfCurrentWorkingDay);
    if (minutesCovered > minutes) {
      // If minutesCovered covers the minutes value passed, that means result is the same working
      // day. Just add minutes and return
      return date.plusMinutes(minutes);
    } else {
      // Calculate remainingMinutes, and then recursively call this method with next working day
      long remainingMinutes = minutes - minutesCovered;
      return addWorkingMinutes(endOfCurrentWorkingDay.plusDays(1).withHour(8), remainingMinutes);
    }
}

考虑到周末，

测试了您的样本输入和我的一些其他输入。

注意：我使用的是Java 8 DateTime API，因为您已经使用Java 8了，所以仍然不应该使用Date。

如何增加工作周的日期？

1 个答案: