Java Utililty Methods Week Day

List of utility methods to do Week Day

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Description

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

Method

booleanisWeekendToday()
is Weekend Today 
Calendar calendar = Calendar.getInstance();
int week = calendar.get(Calendar.DAY_OF_WEEK);
return week == 1 || week == 7;
intlastDayOfWeek(int year, int month)
last Day Of Week 
Date lastDate = new Date(year - 1900, month - 1, days(year, month));
return lastDate.getDay();
DatenextDayAndHour(int dayOfTheWeek, int hour)
next Day And Hour 
Calendar cal = new GregorianCalendar();
cal.setTimeInMillis(System.currentTimeMillis());
if (cal.get(Calendar.DAY_OF_WEEK) > dayOfTheWeek
        || (cal.get(Calendar.DAY_OF_WEEK) == dayOfTheWeek && cal.get(Calendar.HOUR_OF_DAY) >= hour)) {
    cal.add(Calendar.WEEK_OF_YEAR, 1);
cal.set(Calendar.DAY_OF_WEEK, dayOfTheWeek);
cal.set(Calendar.HOUR_OF_DAY, hour);
...
DatenextTwoWeeksFromToday()
next Two Weeks From Today 
return addDays(new Date(), 14);
DatenextWeekday(int weekday, int hour, int minute, int second)
next Weekday 
Calendar now = now();
int day = now.get(Calendar.DAY_OF_MONTH) + (7 - now.get(Calendar.DAY_OF_WEEK)) + weekday;
return year(now.get(Calendar.MONTH), day, hour, minute, second);
StringparseToEntireWeekCaption(String startDay, String pattern)
parse To Entire Week Caption 
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
Calendar calendar = new GregorianCalendar(2012, Calendar.JANUARY, 1);
calendar.setTime(sdf.parse(startDay));
calendar.add(Calendar.DAY_OF_MONTH, 6);
String endDay = sdf.format(calendar.getTime());
return startDay + "~" + endDay;
DateplusDay(Date date, int plusWeek)
plus Day 
return plusInteger(date, Calendar.DAY_OF_MONTH, plusWeek);
voidtoDayOfWeekInMonth(Calendar c, int dayOfWeek, int weekInMonth)
Takes you to eg the 2nd Thursday in the month, which may involve going back before the current date 
c.set(Calendar.DATE, 1);
c.set(Calendar.DAY_OF_WEEK, dayOfWeek);
c.set(Calendar.DAY_OF_WEEK_IN_MONTH, weekInMonth);
DateweekDay(int week)
week Day 
Calendar cal = calendar();
cal.set(Calendar.DAY_OF_WEEK, week);
return cal.getTime();
Stringweekday(String date)
weekday 
Calendar calendar = Calendar.getInstance();
DateFormat dateFormat = DateFormat.getDateInstance();
Date da = null;
da = dateFormat.parse(date);
calendar.setTime(da);
int num = calendar.get(Calendar.DAY_OF_WEEK);
if (num == 1) {
    num = 7;
...