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

intdayBetweenTwoDates(Date beginDate, Date endDate)
day Between Two Dates 
int days;
int pnMark = 1;
if (endDate != null && beginDate != null) {
    Calendar bCalendar = Calendar.getInstance();
    Calendar eCalendar = Calendar.getInstance();
    if (beginDate.after(endDate)) {
        pnMark = -1;
        bCalendar.setTime(endDate);
...
DatedayEnd(Date dt)
Set a Date dt to the end of the day, that is, 11:59:59:999pm return the new Date. 
Calendar cal = Calendar.getInstance();
cal.setTime(dt);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
DatedayEnd(final Date date)
day End 
Calendar c = Calendar.getInstance();
c.setTime(date);
c.set(Calendar.HOUR_OF_DAY, 23);
c.set(Calendar.MINUTE, 59);
c.set(Calendar.SECOND, 59);
c.set(Calendar.MILLISECOND, 999);
return c.getTime();
intdaysOfTwoDate(Date beginDate, Date endDate)
days Of Two Date 
Calendar beginCalendar = Calendar.getInstance();
Calendar endCalendar = Calendar.getInstance();
beginCalendar.setTime(beginDate);
endCalendar.setTime(endDate);
return getDaysBetween(beginCalendar, endCalendar);
longdayValue(Date date, boolean startEnd)
This method converts the java date into the long that point to the beginning of the day. 
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.HOUR, startEnd ? 0 : 23);
calendar.set(Calendar.MINUTE, startEnd ? 0 : 59);
calendar.set(Calendar.SECOND, startEnd ? 0 : 59);
calendar.set(Calendar.MILLISECOND, startEnd ? 0 : 999);
return calendar.getTime().getTime();
intdeltaInDays(Date start, Date end)
Get the difference in number of days between the specified dates. 
Calendar startCal = Calendar.getInstance();
startCal.setTime(start);
Calendar endCal = Calendar.getInstance();
endCal.setTime(end);
clearTime(startCal);
clearTime(endCal);
long endL = endCal.getTimeInMillis() + endCal.getTimeZone().getOffset(endCal.getTimeInMillis());
long startL = startCal.getTimeInMillis() + startCal.getTimeZone().getOffset(startCal.getTimeInMillis());
...
intdeltaMonths(Date start, Date end)
delta Months 
Calendar a = Calendar.getInstance();
a.setTime(start);
int sm = a.get(Calendar.YEAR) * 12 + a.get(Calendar.MONTH);
a.setTime(end);
int em = a.get(Calendar.YEAR) * 12 + a.get(Calendar.MONTH);
return em - sm;
intdivMonth(Date startDate, Date enDate)
div Month 
Calendar startCalendar = Calendar.getInstance();
startCalendar.setTime(startDate);
Calendar endCalendar = Calendar.getInstance();
endCalendar.setTime(enDate);
int yearDiv = startCalendar.get(Calendar.YEAR) - endCalendar.get(Calendar.YEAR);
int monthDiv = startCalendar.get(Calendar.MONTH) - endCalendar.get(Calendar.MONTH);
return monthDiv + yearDiv * 12;
DateendOfDay(Date aDate)
Compute midnight of the date provided. 
Calendar cal = GregorianCalendar.getInstance();
cal.setTime(aDate);
cal.set(Calendar.MILLISECOND, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.HOUR_OF_DAY, 24);
Date midnight = cal.getTime();
return midnight;
...
DateendOfDay(Date aDate)
end Of Day 
Calendar cal = GregorianCalendar.getInstance();
cal.setTime(aDate);
cal.set(Calendar.MILLISECOND, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.HOUR_OF_DAY, 24);
Date midnight = cal.getTime();
return midnight;
...