本文實例講述了java獲取日期之間天數的方法。分享給大家供大家參考。具體實現方法如下：
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private int daysBetween(Date now, Date returnDate) { Calendar cNow = Calendar.getInstance(); Calendar cReturnDate = Calendar.getInstance(); cNow.setTime(now); cReturnDate.setTime(returnDate); setTimeToMidnight(cNow); setTimeToMidnight(cReturnDate); long todayMs = cNow.getTimeInMillis(); long returnMs = cReturnDate.getTimeInMillis(); long intervalMs = todayMs - returnMs; return millisecondsToDays(intervalMs);}private int millisecondsToDays(long intervalMs) { return (int) (intervalMs / (1000 * 86400));}private void setTimeToMidnight(Calendar calendar) { calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0);} |
希望本文所述對大家的java程序設計有所幫助。
