java - how to compare same days in date

Question

I have a long data member that represents a date.
I cast it to a

 Date d = new Date(long);

I want to now if a nother date has the same day. How do I do it? Thanks.
(For andrew)

Edit :

Found this solution

 SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMdd");
 return fmt.format(date1).equals(fmt.format(date2));

this answer will help you, http://stackoverflow.com/a/2517954/2939690 — vuhung3990, May 16 '17 at 08:14

score 3 · Answer 1 · answered Jul 11 '11 at 12:49

3

Well you can convert them both to calendar Objects and get the calendar objects day and compare that way.

Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(LONG VALUE HERE);
int day = cal.get(Calendar.DAY_OF_MONTH);

Do the same thing with the other date, and compare the values.

edit: By the way, you are not casting the long to a date, you are just creating a Date object using a long.

answered Jul 11 '11 at 12:49

RMT

I think instead of Calendar.DAY_OF_MONTH we should check Calendar.DAY_OF_YEAR because 15 of jun and 15 of july would be same so day of year is right one check -https://stackoverflow.com/a/2517824/4741746 – Sushant Gosavi Dec 01 '17 at 06:51

score 3 · Accepted Answer · answered Jul 11 '11 at 12:51

3

use the joda api.
http://joda-time.sourceforge.net/
Its a lot easier and better than the Calendar object route in java jdk

answered Jul 11 '11 at 12:51

sethu

score 2 · Answer 3 · answered Oct 22 '12 at 13:31

2

Use apache commons.

 DateUtils.isSameDay(date1, date2);

answered Oct 22 '12 at 13:31

ziri

score 1 · Answer 4 · answered Jul 11 '11 at 12:50

1

To see if the dates are equal:

date_one.equals(date_two);

To see if just the day is equal, I usually chop the time off the date (setHours(0), setMinutes(0), etc.) and then use the .equals() method.

answered Jul 11 '11 at 12:50

minichate

score 1 · Answer 5 · answered Jul 11 '11 at 12:50

1

Use java.util.Calendar for all comparison operations.

answered Jul 11 '11 at 12:50

stemm

5 Answers5