Java Utililty Methods Calendar Month

List of utility methods to do Calendar Month

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Description

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

Method

CalendargetMonthBegin(Calendar c)
get Month Begin 
Calendar r = getCurCalendar();
r.set(c.get(Calendar.YEAR), c.get(Calendar.MONTH), 1, 0, 0, 0);
return (r);
DategetMonthBegin(Calendar calendar)
get Month Begin 
if (calendar == null) {
    return null;
Calendar date = new GregorianCalendar(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
        calendar.get(Calendar.DAY_OF_MONTH));
int dm = date.get(Calendar.DAY_OF_MONTH);
while (dm != 1) {
    date.add(Calendar.DATE, -1);
...
StringgetMonthName(Calendar cal)
get Month Name 
String month = monthName[cal.get(Calendar.MONTH)];
return month;
DategetMonthStart(Calendar c)
get Month Start 
c.set(Calendar.DAY_OF_MONTH, 1);
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
return c.getTime();
DategetMonthStart(Calendar cal)
get Month Start 
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.getActualMinimum(Calendar.DAY_OF_MONTH), 0, 0,
        1);
return cal.getTime();
StringgetMonthStr(Calendar cal)
get Month Str 
int month = cal.get(Calendar.MONTH) + 1;
return month > 9 ? "" + month : "0" + month;
CalendargetNextMonth(Calendar calendar, int month)
get Next Month 
calendar.set(Calendar.MONTH, calendar.get(Calendar.MONTH) + month);
return calendar;
intgetNumDaysInMonth(GregorianCalendar aCalendar)
Gets the number of days in the current month. 
int month = aCalendar.get(Calendar.MONTH);
int monthDays = mDaysInMonth[month];
if (month == Calendar.FEBRUARY && aCalendar.isLeapYear(aCalendar.get(Calendar.YEAR))) {
    ++monthDays;
return monthDays;
DategetStartOfMonth(Date day, Calendar cal)
get Start Of Month 
if (day == null)
    day = new Date();
cal.setTime(day);
cal.set(Calendar.HOUR_OF_DAY, cal.getMinimum(Calendar.HOUR_OF_DAY));
cal.set(Calendar.MINUTE, cal.getMinimum(Calendar.MINUTE));
cal.set(Calendar.SECOND, cal.getMinimum(Calendar.SECOND));
cal.set(Calendar.MILLISECOND, cal.getMinimum(Calendar.MILLISECOND));
cal.set(Calendar.DAY_OF_MONTH, 1);
...
voidincrementMonth(Calendar cal)
Increments month of Calendar by one month. 
Calendar cal2 = (Calendar) cal.clone();
floorDayOfMonth(cal2);
cal2.add(Calendar.MONTH, 1);
if (cal.get(Calendar.DAY_OF_MONTH) > cal2.getActualMaximum(Calendar.DAY_OF_MONTH)) {
    floorDayOfMonth(cal);
    cal.add(Calendar.MONTH, 2);
cal.add(Calendar.MONTH, 1);
...