RE: Date calculations

["Joel R. Cochran" <jrc@xxxxxxxxxxxxx>]

Easily solved by putting the constants in a static array (with 0 as null),
then send the array element instead...

static int[] months = { null , Calendar.JANUARY , Calendar.FEBRUARY ,
Calendar.MARCH ,
                               Calendar.APRIL , Calendar.MAY , Calendar.JUNE
,
                               Calendar.JULY , Calendar.AUGUST ,
Calendar.SEPTEMBER ,
                               Calendar.OCTOBER , Calendar.NOVEMBER ,
Calendar.DECEMBER
                      };
...

Calendar c = new GregorianCalendar( year , months[ monthNumber ] , day );

:-)


Joel R. Cochran
Director of Internet Services
VamaNet.com
(800)480-8810
mailto:webmaster@vamanet.com


> -----Original Message-----
> From: Clapham, Paul [mailto:pclapham@core-mark.com]
> Sent: Thursday, July 18, 2002 2:46 PM
> To: java400-l@midrange.com
> Subject: RE: Date calculations
>
>
> Indeed it is.  But that doesn't work if you use variables in the
> constructor's parameters, as people might well do; in that
> case you still
> need to know to subtract 1 from the month number to make it work.
>
> PC2
>
> -----Original Message-----
> From: David Morris [mailto:David.Morris@plumcreek.com]
> Sent: July 18, 2002 11:36
> To: java400-l@midrange.com
> Subject: RE: Date calculations
>
>
> PC2,
>
> It is a good idea to use the named constants like Calendar.SEPTEMBER
> just like it is generally better to code something like:
>
> public static final boolean SUMMARY_OUTPUT = true;
> public static final boolean DETAIL_OUTPUT = false;
> ...
> Report report = new Report(SUMMARY_OUTPUT);
>
> David Morris
>
> >>> pclapham@core-mark.com 07/18/02 11:30AM >>>
> You just got zapped by one of the more idiotic features of Java.  In
> Calendar, months are numbered starting at zero, so "08" represents
> September.  Your original value was "September 31", which is
> normalized
> to
> October 1, and the rest becomes obvious once you know that.
>
> PC2
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