Java Utililty Methods Day in Month

List of utility methods to do Day in Month

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Description

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

Method

intgetDaysInMonth(int year, int month)
get Days In Month 
if (month == 2) {
    if ((year % 4) == 0) {
        return 29;
return DAYS_IN_MONTH[month - 1];
int[]getDaysInMonths()
get Days In Months 
return DOM.clone();
intgetDaysOfMonth(Date startdate, Date enddate, String month)
get Days Of Month 
Calendar cs = Calendar.getInstance();
cs.setTime(startdate);
Calendar ce = Calendar.getInstance();
ce.setTime(enddate);
int startmonth = cs.get(Calendar.MONTH) + 1;
int endmonth = ce.get(Calendar.MONTH) + 1;
int m = Integer.parseInt(month);
Date ld = getLastDay(String.valueOf(cs.get(Calendar.YEAR)), month);
...
StringgetFirstDayOfMonth(int year, int month)
get first date of given month and year 
String monthStr = month < 10 ? "0" + month : String.valueOf(month);
return year + "-" + monthStr + "-" + "01";
StringgetFirstdayOfMonth(String year, String month)
get Firstday Of Month 
return year + month + "01";
intgetLastDayInMonth(int month, int year)
get Last Day In Month 
int NumberOfDays = 0;
switch (month) {
case 0:
    NumberOfDays = 31;
    break;
case 1:
    if ((((year % 4) == 0) && ((year % 100) != 0)) || ((year % 400) == 0)) {
        NumberOfDays = 29;
...
intgetLastDayOfMonth(int year, int month)
get Last Day Of Month 
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {
    return 31;
if (month == 4 || month == 6 || month == 9 || month == 11) {
    return 30;
if (month == 2) {
    if (isLeapYear(year)) {
...
StringgetLastDayOfMonth(String monthInitials)
get Last Day Of Month 
if (monthInitials.equals("Jan"))
    return "31";
else if (monthInitials.equals("Feb"))
    return "30";
else if (monthInitials.equals("Mar"))
    return "31";
else if (monthInitials.equals("Apr"))
    return "30";
...
intgetMaxDayByMonth(String month)
get Max Day By Month 
switch (Integer.parseInt(month)) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
...
intgetMaxMonthDay(int year, int month)
get Max Month Day 
if (month < 7) {
    return 31; 
if (month < 12) {
    return 30; 
if (isJalaliLeapYear(year)) {
    return 30; 
...