Java Utililty Methods Day End

List of utility methods to do Day End

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Description

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

Method

intgetMonths(Date end, Date start)
get Months 
Calendar aCalendar = Calendar.getInstance();
Calendar bCalendar = Calendar.getInstance();
aCalendar.setTime(end);
bCalendar.setTime(start);
int months = 0;
while (aCalendar.before(bCalendar)) {
    months++;
    aCalendar.add(Calendar.MONTH, 1);
...
IntegergetMonthsBetweenBeginDateAndEndDate(Date beginDate, Date endDate)
get Months Between Begin Date And End Date 
Calendar cal1 = Calendar.getInstance();
cal1.setTime(beginDate);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(endDate);
int year = cal2.get(Calendar.YEAR) - cal1.get(Calendar.YEAR);
int month = cal2.get(Calendar.MONTH) - cal1.get(Calendar.MONTH);
month = year * 12 + month;
month += 1;
...
intgetMonthSpan(Date begin, Date end)
get Month Span 
Calendar beginCal = new GregorianCalendar();
beginCal.setTime(begin);
Calendar endCal = new GregorianCalendar();
endCal.setTime(end);
int m = (endCal.get(Calendar.MONTH)) - (beginCal.get(Calendar.MONTH));
int y = (endCal.get(Calendar.YEAR)) - (beginCal.get(Calendar.YEAR));
return y * 12 + m;
intgetMonthSpan(Date start, Date end)
This method returns the number of months between the specified dates. 
GregorianCalendar first = createCalendar(start);
GregorianCalendar last = createCalendar(end);
int monthSpan = 0;
first.set(DAY_OF_MONTH, 1);
monthSpan += (last.get(MONTH) - first.get(MONTH));
monthSpan += 12 * (last.get(YEAR) - first.get(YEAR));
if (monthSpan < 0) {
    monthSpan = 0;
...
longgetMsBetween(Date startDate, Date endDate)
get Ms Between 
Calendar cal = getCalendar();
cal.setTime(startDate);
long startMs = cal.getTimeInMillis();
cal.setTime(endDate);
long endMs = cal.getTimeInMillis();
return endMs - startMs;
DategetNextEndDate(Date date, int offset)
get Next End Date 
if (offset < 1) {
    return date;
} else {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);
    for (int dayOfWeek = calendar.get(7); offset > 0; --offset) {
        if (dayOfWeek == 6) {
            calendar.add(5, 3);
...
DategetNextSendTime(Date sendDate, Date start)
get Next Send Time 
Calendar calendar = Calendar.getInstance();
if (sendDate != null) {
    calendar.setTime(sendDate);
Calendar startCalendar = Calendar.getInstance();
if (start == null) {
    startCalendar.set(Calendar.HOUR_OF_DAY, 8);
    startCalendar.set(Calendar.MINUTE, 0);
...
IntegergetNumberOfDaysBetweenDates(Date beginDate, Date endDate)
get Number Of Days Between Dates 
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
c1.setTime(beginDate);
c2.setTime(endDate);
long timeBetweenInMillis = c2.getTimeInMillis() - c1.getTimeInMillis();
Integer numberDaysBetweenDates = new Integer(new Long(timeBetweenInMillis / (3600000 * 24)).intValue());
return numberDaysBetweenDates;
intgetNumberOfMonthsBetween(final Date begin, final Date end)
get Number Of Months Between 
if (begin == null || end == null)
    return -1;
Calendar cal1 = Calendar.getInstance();
cal1.setTime(begin);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(end);
return (cal2.get(Calendar.YEAR) - cal1.get(Calendar.YEAR)) * 12
        + (cal2.get(Calendar.MONTH) - cal1.get(Calendar.MONTH));
...
intgetNumMonths(Date dStart, Date dEnd)
Gets the number of months between two date objects 
int i = 0;
Calendar calendar = Calendar.getInstance();
calendar.setTime(dStart);
while (calendar.getTime().before(dEnd) || calendar.getTime().equals(dEnd)) {
    calendar.add(Calendar.MONTH, 1);
    i++;
i--;
...