Get date of first day of current week

Question

HI!
Why does the following method do not return the date of the first day of the week in which the given date lies?
public static int getFirstDayOfWeek(int year, int month, int date) { 
GregorianCalendar GregCalendar = (GregorianCalendar)
new GregorianCalendar(year, month, date).getInstance();
while(GregCalendar.get(Calendar.DAY_OF_WEEK)!= Calendar.MONDAY) {
GregCalendar.roll(Calendar.DATE, false);
return GregCalendar.get(Calendar.DATE);     
What I want the method to do:
year = 2003
month = Calendar.JANUARY
date = 8
==> GregCalendar.get(Calendar.DAY_OF_WEEK) == Calendar.WEDNESDAY
==> GregCalendar.roll(Calendar.DATE, false);
==> GregCalendar.get(Calendar.DATE) == 7 (?????????)
==> GregCalendar.get(Calendar.DAY_OF_WEEK) == Calendar.TUESDAY
==> GregCalendar.roll(Calendar.DATE, false);
==> GregCalendar.get(Calendar.DATE) == 6
==> GregCalendar.get(Calendar.DAY_OF_WEEK) == Calendar.MONDAY
==> return GregCalendar.get(Calendar.DATE)
But in reality, it always returns 6 grrrrrrrr
What is wrong wirh it?
Yours RB

Answer 1

public Date getCurrentMonday()
        Date monday = null;
        Calendar rightNow = Calendar.getInstance();
        int day = rightNow.get(Calendar.DAY_OF_WEEK);
        int distance = 0;
        if (day == Calendar.MONDAY)
            monday = rightNow.getTime();
        else
            distance = day - Calendar.MONDAY;
            if (distance == -1)
                distance = 6;
            monday = (Date) (rightNow.getTime());
            monday.setTime(monday.getTime() - 1000 * 60 * 60 * 24 * (distance));
        return monday;
    }