How to calculate difference in days between two dateboxes in GWT?

Question

I have 1 datebox (datebox1) in my GWT application, which allows users to set the date in past.

Datebox1 is set to following format (not that it probably matters): datebox1.setFormat(new DateBox.DefaultFormat (DateTimeFormat.getFormat("EEE, MMM dd, yyyy")));

How do I programatically calculate the difference in days between the date selected in the date box and the current date.

I can't find much on the net and would appreciate a simple example.

People like Basil Bourque & Jarrod Roberson should know, that not all that works in Java will work in GWT as well. I'd typically do that before going ahead and marking something to be a duplicate of a question. — jjj, Jun 10 '15 at 11:22

score 5 · Accepted Answer · answered Jun 03 '15 at 03:45

5

The simplest way:

Date currentDate = new Date();
int daysBetween = CalendarUtil.getDaysBetween(myDatePicker.getValue(), currentDate);

answered Jun 03 '15 at 03:45

Andrei Volgin

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score 0 · Answer 2 · answered Jun 03 '15 at 09:55

the below code block will be useful for you

    Date selectedDate = DateBox.getDatePicker().getValue();
    Date currentDate= new Date();

    long fromDate = selectedDate.getTime();
    long toDate = currentDate.getTime();

    long diffGap = toDate - fromDate;
    long diffDays = diffGap / (24 * 60 * 60 * 1000);

jit thakore · Answer 3 · 2015-11-24T13:50:06.460

If you know how to extract date from your textbox, you can use the following function to get the time difference between any two dates

public String getTimeDiff(Date dateOne, Date dateTwo) {
String diff = "";
long timeDiff = Math.abs(dateOne.getTime() - dateTwo.getTime());
diff = String.format("%d hour(s) %d min(s)", TimeUnit.MILLISECONDS.toHours(timeDiff),
TimeUnit.MILLISECONDS.toMinutes(timeDiff) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(timeDiff)));
return diff;
}

How to calculate difference in days between two dateboxes in GWT?

3 Answers3