Hi, Brenda.

PE> > Could you please explain in detail how this works?  I have been able
PE> > to understand parts of the algorithm but not the whole.

PE> >PE> static int dow(int y, int m, int d)

PE>Unfortunately not.  It is all to do with maths though.  Basically every 4

[...]

PE>day of week.  I just use someone else's code, as they've
PE>figured out the maths already.

Every year has 52 weeks and *1* day, except leap years which have 52
weeks and 2 days. So, pick a year that you know what dow January 1 is -
eg 1/1/1900 was a Monday. Add 1 day for each year since then, and one
more day for each leap year. Then add the days in the current year up to
the date you're looking for. The remainder after dividing by 7 is the
dow - 0 = Mon, etc.

That's basically what the code does, plus taking into account the leap
year oddities that Paul mentioned.

Regards, FIM.

 * SLMR 2.1a * It's only a hobby ... only a hobby ... only a

--- Maximus 2.01wb