Java Utililty Methods Day of Month

List of utility methods to do Day of Month

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Description

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

Method

DategetFirstDayOfMonth(Date date)
get First Day Of Month 
Calendar calender = Calendar.getInstance();
calender.setTime(date);
calender.set(Calendar.DAY_OF_MONTH, calender.getActualMinimum(Calendar.DAY_OF_MONTH));
setStartTimeOfDay(calender);
return calender.getTime();
DategetFirstDayOfMonth(Date date)
get First Day Of Month 
Calendar result = Calendar.getInstance();
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, date.getYear() + 1900);
calendar.set(Calendar.MONTH, date.getMonth());
calendar.set(Calendar.DATE, date.getDate());
result.set(Calendar.DATE, calendar.getActualMinimum(Calendar.DATE));
result.set(Calendar.MONTH, calendar.get(Calendar.MONTH));
result.set(Calendar.YEAR, calendar.get(Calendar.YEAR));
...
java.util.DategetFirstDayOfMonth(java.util.Date date)
getFirstDayOfMonth: returns the first day of the given dates month 
date = truncateToDay(date);
if (date != null) {
    java.util.Calendar c = java.util.Calendar.getInstance(Locale.GERMANY);
    c.setTime(date);
    c.set(Calendar.DAY_OF_MONTH, 1);
    return c.getTime();
} else {
    return null;
...
DategetFirstMiddleDayOfMonth(Date date)
get First Middle Day Of Month 
Calendar todayCalendar = Calendar.getInstance();
todayCalendar.setTime(date);
Calendar firstMiddleDayOfmonthCalendar = Calendar.getInstance();
firstMiddleDayOfmonthCalendar.set(todayCalendar.get(Calendar.YEAR), todayCalendar.get(Calendar.MONTH), 16,
        0, 0, 0);
return firstMiddleDayOfmonthCalendar.getTime();
IntegergetFistDayOfMonth(Date date)
get Fist Day Of Month 
Integer intDate = getIntDate(date);
int year = intDate / 10000;
int month = intDate % 10000 / 100;
return getIntDate(newCalendar(year, month, 1));
DategetFromDate(boolean invoiceSearchFromFirstDayOfMonth)
get From Date 
if (invoiceSearchFromFirstDayOfMonth) {
    Calendar calendar = Calendar.getInstance();
    int month = calendar.get(Calendar.MONTH);
    calendar.set(Calendar.MONTH, month - 6);
    calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
...
StringgetLastDateOfCurMonth()
get Last Date Of Cur Month 
String curYearMonth = getCurYearMonth();
Calendar calendar = Calendar.getInstance();
int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
return curYearMonth + "-" + maxDay;
intgetLastDay(int year, int month)
get Last Day 
int day = 0;
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
...
StringgetLastDayByMonthWeek(int year, int month, int week)
get Last Day By Month Week 
DateFormat df = new SimpleDateFormat("yyyy-MM-dd ");
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month - 1);
c.set(Calendar.WEEK_OF_MONTH, week);
int firstDayofweek = c.getFirstDayOfWeek();
int lastDayofweek = firstDayofweek + 6;
Calendar c2 = Calendar.getInstance();
...
intgetLastDayInMonth(int year, int month)
get Last Day In Month 
int lLastDay = -1;
switch (month) {
case 0: 
case 2: 
case 4: 
case 6: 
case 7: 
case 9: 
...