Java Utililty Methods Day of Week

List of utility methods to do Day of Week

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Description

The list of methods to do Day of Week are organized into topic(s).

Method

intWeekOfTheYear(Date dt)
Settimana dell'anno 
Calendar cal = new GregorianCalendar();
cal.setTime(dt);
return cal.get(Calendar.WEEK_OF_YEAR);
StringweekOfYear(Date date)
week Of Year 
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH) + 1;
int day = cal.get(Calendar.DATE);
int a, b, c, s, e, f, g, d, n;
int week;
if (month <= 2) {
...
intweeksBetween(Date date1, Date date2)
weeks Between 
int days = daysBetween(date1, date2);
return (days % 7) == 0 ? (days / 7) : (days / 7) + 1;
intweeksBetween(Date early, Date late)
Returns the weeks between two dates. 
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
c1.setTime(early);
c2.setTime(late);
int days = daysBetween(c1, c2) + 1;
int earlyweek = c1.get(Calendar.DAY_OF_WEEK);
int lateweek = c2.get(Calendar.DAY_OF_WEEK);
int weeks = days / 7;
...
DateweekStart(Date date)
week Start 
Calendar startDate = Calendar.getInstance();
startDate.setTime(date);
int day = startDate.get(Calendar.DAY_OF_WEEK);
if (day != Calendar.SATURDAY) {
    startDate.add(Calendar.DATE, -day);
return startDate.getTime();
DateweekStart(Date date)
week Start 
if (date == null) {
    return null;
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateStart(date));
calendar.set(Calendar.DAY_OF_WEEK, calendar.getFirstDayOfWeek());
return calendar.getTime();