Hi Stephen,
maybe I don't get your hint, but date and time parsing is not the
problem. I am wondering about that one hour difference between the
expected date and the parsed date. The problem can be narrowed down to
new DateTime(0) is not 1.1.1970 0:0:0.0 but it is 1.1.1970 1:0:0.0
// same for new java.util.Date(0), by the way...
Where does this one hour come from? Is this probably due to my time
zone I am living in? Then, how can I get rid of it if I would just
like to get a *time*, not a *date*?
Thank you,
Moritz
Am 23.08.2007 um 00:47 schrieb Stephen Colebourne:
> I would take a look at the DateTimeFormatterBuilder and
> PeriodFormatterBuilder classes. If you still have trouble, please
> write
> back.
>
> Stephen
>
>
> Moritz Petersen wrote:
>> Hello list,
>>
>> I'm quite new to Joda Time but my first steps were quite successful
>> so far. Now I've stumbled about a problem which I don't really
>> understand.
>>
>> First of all, I'd like to parse date in a "normal" format, not ISO,
>> but more casual.
>>
>> A date is for example "21.08.2007"
>> A time is for example "14:35"
>> A date with a time (not midnight) is for example "21.08.2007 14:35"
>>
>> For the date I would use a DateTime instance. Unfortunately, I cannot
>> use a String to instantiate the object as desired. Instead I've
>> written a utility class:
>>
>> new DateTime(DateConverter.toMillis("21.08.2007"))
>>
>> OK, this works, but is probably not the most elegant solution.
>>
>> Now to the more nasty part: I would like to parse a time duration.
>> For example say a meeting starts at 14:00 and takes 4 hours. I would
>> like to compute the end date of the meeting. Here's my approach
>> (which doesn't work properly):
>>
>> DateTime start = new DateTime(DateConverter.toMillis("21.08.2007
>> 14:00"));
>> Duration duration = new
>> Duration(DateConverter.toMillis("4:00"));
>> DateTime end = start.plus(duration);
>> assertEquals(new DateTime(DateConverter.toMillis("21.08.2007
>> 18:00")), end);
>>
>> Which results in:
>>
>> junit.framework.AssertionFailedError:
>> expected:<2007-08-21T18:00:00.000+02:00> but
>> was:<2007-08-21T17:00:00.000+02:00>
>>
>> The DateConverter method works roughly (very simplified - but showing
>> the essential part) like this:
>>
>> public long toMillis(String str) {
>> return DateTimeFormat.forPattern("HH:mm").parseMillis(str);
>> }
>>
>>
>> Now I have two questions:
>>
>> a) is the way to convert a String to different Joda Time classes
>> correct this way or is there a better alternative?
>>
>> b) Why does the Duration not work?
>>
>> Regards,
>> Moritz.
>>
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