java 获取两个日期之间的日期列表
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Get the list of dates between two dates
提问by Maguzu
I'm using JDateChooserand I'm making a program that output the list of dates between the selected dates. for example:
我正在使用JDateChooser并且正在制作一个输出所选日期之间的日期列表的程序。例如：
date1= Jan 1, 2013 // Starting Date
date2= Jan 16,2013 // End Date
then it will output
然后它会输出
Jan 2, 2013...
Jan 3, 2013..
Jan 4, 2013..
and so on... until it reaches the end date.
依此类推......直到它到达结束日期。
I already finish working on the my program that once you click a date on the JDatechooserit will output the end date automatically. (selected date + 15 days = end dates)
我已经完成了我的程序，一旦你点击一个日期，JDatechooser它就会自动输出结束日期。（所选日期 + 15 天 = 结束日期）
I download the JCalendaror JDateChooserhere: http://www.toedter.com/en/jcalendar/
我下载JCalendar或JDateChooser在这里：http: //www.toedter.com/en/jcalendar/
回答by MadProgrammer
You should try using Calendar, which will allow you to walk from one date to another...
您应该尝试使用Calendar，这将允许您从一个日期走到另一个日期...
Date fromDate = ...;
Date toDate = ...;
System.out.println("From " + fromDate);
System.out.println("To " + toDate);
Calendar cal = Calendar.getInstance();
cal.setTime(fromDate);
while (cal.getTime().before(toDate)) {
cal.add(Calendar.DATE, 1);
System.out.println(cal.getTime());
}
Updated
更新
This example will include the toDate. You can rectify this by creating a second calendar that acts as the lastDateand subtracting a day from it...
此示例将包括toDate. 您可以通过创建第二个日历lastDate并从中减去一天来纠正此问题...
Calendar lastDate = Calendar.getInstance();
lastDate.setTime(toDate);
lastDate.add(Calendar.DATE, -1);
Calendar cal = Calendar.getInstance();
cal.setTime(fromDate);
while (cal.before(lastDate)) {...}
This will give you all the dates "between" the start and end dates, exclusively.
这将为您提供开始日期和结束日期“之间”的所有日期。
Adding Dates to an ArrayList
将日期添加到 ArrayList
List<Date> dates = new ArrayList<Date>(25);
Calendar cal = Calendar.getInstance();
cal.setTime(fromDate);
while (cal.getTime().before(toDate)) {
cal.add(Calendar.DATE, 1);
dates.add(cal.getTime());
}
2018 java.timeUpdate
2018年java.time更新
Time moves on, things improve. Java 8 introduces the new java.timeAPI which has superseded the "date" classes and should, as a preference, be used instead
时间在前进，情况在改善。Java 8 引入了新的java.timeAPI，它取代了“日期”类，作为首选，应该改用它
LocalDate fromDate = LocalDate.now();
LocalDate toDate = LocalDate.now();
List<LocalDate> dates = new ArrayList<LocalDate>(25);
LocalDate current = fromDate;
//current = current.plusDays(1); // If you don't want to include the start date
//toDate = toDate.plusDays(1); // If you want to include the end date
while (current.isBefore(toDate)) {
dates.add(current));
current = current.plusDays(1);
}
