Java Utililty Methods Day Between

List of utility methods to do Day Between

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Description

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

Method

intgetWorkingDaysBetween(Date fromDate, Date toDate)
get Working Days Between 
return getWorkingDaysBetween(getCalendar(fromDate), getCalendar(toDate));
intgetYearDiff(Date date1, Date date2)
get Year Diff 
if (date1 == null || date2 == null) {
    return 0;
Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(date1);
int year1 = calendar1.get(Calendar.YEAR);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(date2);
...
intgetYearsDifference(Date startTime, Date endTime)
get Years Difference 
Calendar calendarStart = Calendar.getInstance();
Calendar calendarEnd = Calendar.getInstance();
calendarStart.setTime(startTime);
calendarEnd.setTime(endTime);
return (calendarEnd.get(Calendar.YEAR) - calendarStart.get(Calendar.YEAR))
        + (calendarStart.get(Calendar.MONTH) == 0 ? 0 : 1);
StringhourDiff(Date firstDate, Date lastDate)
hour Diff 
Calendar cal1 = new GregorianCalendar(TimeZone.getDefault());
Calendar cal2 = new GregorianCalendar(TimeZone.getDefault());
cal1.setTime(firstDate);
cal2.setTime(lastDate);
int d1 = cal1.get(Calendar.DAY_OF_YEAR);
int d2 = cal2.get(Calendar.DAY_OF_YEAR);
int h1 = cal1.get(Calendar.HOUR_OF_DAY);
int h2 = cal2.get(Calendar.HOUR_OF_DAY);
...
DateinternalTrimOrAlterDate(Date date, boolean trim, int dayDiff)
internal Trim Or Alter Date 
if (null == date) {
    return null;
Calendar cal = Calendar.getInstance();
cal.setTime(date);
if (trim) {
    cal.set(Calendar.MILLISECOND, 0);
    cal.set(Calendar.SECOND, 0);
...
intmonthDiff(Date beginDate, Date endDate)
month Diff 
if (beginDate == null || endDate == null) {
    return 0;
Calendar beginCal = Calendar.getInstance();
beginCal.setTime(beginDate);
Calendar endCal = Calendar.getInstance();
endCal.setTime(endDate);
int yearDiff = endCal.get(Calendar.YEAR) - beginCal.get(Calendar.YEAR);
...
intmonthDiff(Date from, Date to)
month Diff 
Calendar fromCal = Calendar.getInstance();
Calendar toCal = Calendar.getInstance();
fromCal.setTime(from);
toCal.setTime(to);
int monthDiff = (toCal.get(Calendar.YEAR) - fromCal.get(Calendar.YEAR)) * 12
        + (toCal.get(Calendar.MONTH) - fromCal.get(Calendar.MONTH));
return monthDiff;
intmonthDiff(Date fromDate, Date toDate)
month Diff 
long dateDiff = dateDiff(fromDate, toDate);
int monthDiff = (int) (dateDiff / DAY_PER_MONTH);
if (addMonths(fromDate, monthDiff).after(toDate)) {
    monthDiff--;
return monthDiff;
intmonthDifference(final Date a, final Date b)
month Difference 
final Calendar calendarA = Calendar.getInstance();
final Calendar calendarB = Calendar.getInstance();
int multiplier;
if (b.getTime() - a.getTime() > 0) {
    multiplier = -1;
    calendarA.setTime(b);
    calendarB.setTime(a);
} else {
...
intmonthsDiff(final Date data1, final Date data2)
Get the difference in months of two given dates. 
Calendar cal = Calendar.getInstance();
cal.setTime(data1);
int monthA = cal.get(Calendar.MONTH);
int yearA = cal.get(Calendar.YEAR);
cal.setTime(data2);
int monthB = cal.get(Calendar.MONTH);
int yearB = cal.get(Calendar.YEAR);
return ((yearA - yearB) * cal.getMaximum(Calendar.MONTH)) + (monthA - monthB);
...