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

StringgetLastdayOfMonth(String year, String month)
get Lastday Of Month 
return year + month + getNumberOfDays(year, month);
StringgetLastDayOfMonth(String year, String month)
get Last Day Of Month 
String LastDay = "";
Calendar cal = Calendar.getInstance();
Date date_;
Date date = new SimpleDateFormat("yyyy-MM-dd").parse(year + "-" + month + "-14");
cal.setTime(date);
int value = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
cal.set(Calendar.DAY_OF_MONTH, value);
date_ = cal.getTime();
...
intgetLastDayOfTheMonth(String dateOfString)
get Last Day Of The Month 
Calendar calendar = Calendar.getInstance();
SimpleDateFormat yearMonthFormat = new SimpleDateFormat("yyyy-MM");
Date date = null;
try {
    date = yearMonthFormat.parse(dateOfString);
} catch (ParseException e) {
    e.printStackTrace();
calendar.setTime(date);
final int lastDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
return lastDay;
StringgetLastDayOfXMonth(Date date, String xMonth)
date + x month and get the last day of the month 
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.DATE, 1);
cal.add(Calendar.MONTH, Integer.parseInt(xMonth) + 1);
cal.add(Calendar.DATE, -1);
return new SimpleDateFormat("yyyyMMdd").format(cal.getTime());
DategetToDate(boolean invoiceSearchFromFirstDayOfMonth)
get To Date 
if (invoiceSearchFromFirstDayOfMonth) {
    Calendar calendar = Calendar.getInstance();
    int month = calendar.get(Calendar.MONTH);
    calendar.set(Calendar.MONTH, month - 1);
    calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
    return toMidnight(calendar.getTime());
} else {
    return new Date();
...
intgetWeekOfFirstDayOfMonth(Date date)
get Week Of First Day Of Month 
return getWeek(getFirstDayOfMonth(date));
intgetWeekOfLastDayOfMonth(Date date)
get Week Of Last Day Of Month 
return getWeek(getLastDayOfMonth(date));
booleanisGivenDayOfMonth(java.util.Date date, int dayOfMonth)
isGivenDayOfMonth: returns whether the given date is the given day of month. 
java.util.Calendar c = java.util.Calendar.getInstance();
c.setTime(date);
return (c.get(java.util.Calendar.DAY_OF_MONTH) == dayOfMonth);
booleanisSameDayOfMonth(Date dt1, Date dt2)
Does it have the same day of month 
if (dt1 == null || dt2 == null)
    return false;
GregorianCalendar gc1 = new GregorianCalendar();
gc1.setTime(dt1);
GregorianCalendar gc2 = new GregorianCalendar();
gc2.setTime(dt2);
return (gc1.get(Calendar.DAY_OF_MONTH) == gc2.get(Calendar.DAY_OF_MONTH));
DatenewDate(int year, int month, int dayOfMonth)
new Date 
Calendar calendar = Calendar.getInstance();
calendar.clear();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month - 1);
calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
return calendar.getTime();