java.util.Date problem

System.out.println(beginDate.equals(selectedDate)); System.out.println(beginDate.getTime()); System.out.println(selectedDate.getTime());
Results:
false
1127793600000
1127793600000

Both beginDate and selectedDate are of type java.util.Date. Can someone explain the result? According to the API:

two Date objects are equal if and only if the getTime method returns the same long value for both.

Well, where do the Date objects come from?

You'd think. The one from the database is probably a java.sql.Date, which is a subclass of java.util.Date. Still, they should compare equal if getTime() reports the same number.

Hi,

Can you try using compareTo(<Date object> . If the result is 0, the two dates are equal. I don't know why equal is not working . This may help you.

There are two possible alternatives to this:

a. Create calendar objects and compare the relevant fields of the calendar instances (day, month, year...).

b. Change the code to something like

int tolerableDifference = 24 * 60 * 60 * 1000; // milliseconds
return Math.abs(beginDate.getTime() - selectedDate.getTime()) < tolerableDifference;

Here, it should return true only if they represent the same date upto the day. (Caution: This algorithm might need some testing/debugging thow.)

Perhaps the first one is preferable.

Hope this helps.

I don't know why your code is not working, but I can offer a workaround.

Just try
Date begindate2= new Date(beginDate.getTime());

and then

selectedDate.equals(begindate2);