Java Utililty Methods Calendar Day

List of utility methods to do Calendar Day

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Description

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

Method

voidmoveToCalendarDay(Calendar cal, int day)
move To Calendar Day 
assertArgumentNotMinusNotZeroInteger("day", day);
cal.set(Calendar.DAY_OF_MONTH, day);
voidmoveToCalendarDayJust(Calendar cal)
move To Calendar Day Just 
moveToCalendarDayJust(cal, cal.getActualMinimum(Calendar.HOUR_OF_DAY));
CalendarnewCalendarForDay(Date date)
new Calendar For Day 
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.HOUR, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal;
voidresetToBeginningOfDay(Calendar c)
reset To Beginning Of Day 
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
booleansameDay(Calendar a, Calendar b)
same Day 
return a.get(Calendar.DAY_OF_YEAR) == b.get(Calendar.DAY_OF_YEAR)
        && a.get(Calendar.MONTH) == b.get(Calendar.MONTH) && a.get(Calendar.YEAR) == b.get(Calendar.YEAR);
booleansameDay(Calendar c1, Calendar c2)
same Day 
return c1.get(Calendar.YEAR) == c2.get(Calendar.YEAR)
        && c1.get(Calendar.DAY_OF_YEAR) == c2.get(Calendar.DAY_OF_YEAR);
booleansameDay(Calendar one, Calendar two)
Returns true if the two given calendars are dated on the same year, month and day. 
return one.get(Calendar.DATE) == two.get(Calendar.DATE) && sameMonth(one, two);
voidsetDayToCalendar(int days, Calendar calendar)
Converts the number of elapsed days from 0001/01/01 (YYYY/MM/DD) to the corresponded date, and set it to the target calendar object. 
int year = getYearFromDay(days);
int daysInYear = days - getDayFromYear(year);
boolean leap = isLeap(year);
int month = getMonthOfYear(daysInYear, leap);
int day = getDayOfMonth(daysInYear, leap);
calendar.set(year, month - 1, day, 0, 0, 0);
calendar.set(Calendar.MILLISECOND, 0);
CalendarsetEndDay(Calendar cal)
set End Day 
cal.set(11, 23);
cal.set(12, 59);
cal.set(13, 59);
return cal;
voidsetStartOfDay(final Calendar calendar)
set Start Of Day 
calendar.set(Calendar.HOUR, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);