Date Comparison In Java

Question

I have a date [format - dd/mm/yyyy]. I need to compare it with the current date so that I can execute this logic

if(end date is in the future) {
//logic
} else {
//logic
}

Can we do this in JAVA ?

This can help you: "Compare dates in Java": http://stackoverflow.com/questions/2592501/compare-dates-in-java — Alex, Oct 02 '12 at 12:20
The simple answer to your actual question *Can we do this in JAVA?* is Yes. — maba, Oct 02 '12 at 12:27

RNJ · Answer 1 · 2012-10-02T12:25:23.783

1

It looks like you are starting with a string so you can use SimpleDateFormat.parse to convert the String to a Date.

Then you can use the compareTo function on the Date class to see if it is in the past or not.

Something like the below (I havent compiled this...)

if (new SimpleDateFormat("dd/MM/yyy").parse(yourSring).compareTo(new Date()) > 0) {
   ...
}

If possible I would always use JodaTime thought instead of the Java Date and Calendar classes. It is much easier to use.

edited Oct 02 '12 at 12:25

answered Oct 02 '12 at 12:19

RNJ

You can use Date#after(Date) instead of compareTo to shorten the code somewhat. And why is "DateTime.parse(s, DateTimeFormat.forPattern("dd/MM/yyyy")).isAfterNow()" with Joda (or is it possible to do the same with shorter code?) much easier than "new SimpleDateFormat("dd/MM/yyyy").parse(s).after(new Date())" with the builtin API? – jarnbjo Oct 02 '12 at 13:11

score 0 · Answer 2 · answered Oct 02 '12 at 12:23

0

In general, use Joda Time:

DateTime.parse("...").isAfterNow();

You will probably want to pass an appropriate DateTimeFormatter, such as DateTimeFormat.forPattern("d/M/y"), as the second parameter.

answered Oct 02 '12 at 12:23

Michael Piefel

score 0 · Answer 3 · answered Oct 02 '12 at 12:26

0

use compareto method to compare two dates. check here in Date API

if(curreDate.compareTo(thisdate)>0) {
// do your logic
}

answered Oct 02 '12 at 12:26

PermGenError

score -1 · Answer 4 · answered Oct 02 '12 at 12:21

-1

if(endDate.after(new Date())){}

just compare to a new Date it will be created a date time of now.

answered Oct 02 '12 at 12:21

NimChimpsky

4 Answers4