RE: Date calculations

["Gary L Peskin" <garyp@xxxxxxxxxxxx>]

Month 8 in Calendar (and GregorianCalendar) is September, not August
since January is 0.  September has only 30 days.  Therefore,

  new GregorianCalendar(2002, 08, 31)

is really September 31, 2002.  For a lenient Calendar object (see the
javadoc), this is the same as October 1, 2002.  Adding 1 day to this
results in October 2nd.

Gary

> -----Original Message-----
> From: java400-l-admin@midrange.com
> [mailto:java400-l-admin@midrange.com] On Behalf Of Robert Upshall
> Sent: Thursday, July 18, 2002 10:20 AM
> To: java400-l@midrange.com
> Subject: Re: Date calculations
>
>
> Hmmm .... why does
>
>             Calendar c = new GregorianCalendar(2002, 08, 31);
>             c.add(Calendar.DATE, 1);
>
> give me
>
>             the calendar c how has a date of 2002/10/02
>
> Am I doing this wrong?  I want something smart enough to
> consider the current month/day.
>
> Robert
>
>
> ----- Original Message -----
> From: "Bruce Jin" <brucej@MRC-PRODUCTIVITY.COM>
> To: <java400-l@midrange.com>
> Sent: Thursday, July 18, 2002 11:23 AM
> Subject: Re: Date calculations
>
>
> > Class Calendar and its subclass GregorianCalendar are very useful.
> >
> > ----- Original Message -----
> >
> > From: "Robert Upshall" <rupshall@psasoft.com>
> > To: <java400-l@midrange.com>
> > Sent: Thursday, July 18, 2002 6:27 AM
> > Subject: Date calculations
> >
> >
> > > Does java have any date classes that will allow me to do date
> calculation
> > > like the date type in RPG?
> > >   ie. newDate = date.addDay(1) ;
> > >
> > > Robert
> > >
> > >
> > >
> > > _______________________________________________
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