Java Utililty Methods Date to Day

List of utility methods to do Date to Day

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Description

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

Method

intgetDayShort(Date date)
get Day Short 
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(START_2011);
Calendar targetCalendar = Calendar.getInstance();
targetCalendar.setTime(date);
targetCalendar.set(Calendar.HOUR_OF_DAY, 0);
targetCalendar.set(Calendar.MINUTE, 0);
targetCalendar.set(Calendar.SECOND, 0);
targetCalendar.set(Calendar.MILLISECOND, 0);
...
longgetDaysMin(Date d)
get Days Min 
Calendar c1 = new GregorianCalendar();
c1.setTime(d);
long m = c1.get(Calendar.MINUTE);
return m;
intgetDaysPassedSince(Date dateLastModified)
Returns the number of days passed since a specific date.

GregorianCalendar now = new GregorianCalendar();
GregorianCalendar lastModified = (GregorianCalendar) now.clone();
lastModified.setTimeInMillis(dateLastModified.getTime());
return now.get(Calendar.DAY_OF_YEAR) - lastModified.get(Calendar.DAY_OF_YEAR)
        + (now.get(Calendar.YEAR) - lastModified.get(Calendar.YEAR)) * 365;
DategetDayStart(Date date)
get Day Start 
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 00);
return cal.getTime();
DategetDayStart(final Date date)
Get a Date representing the start of the day for the specified date. 
return getDayStart(date, null);
LonggetDaysToLong(Date date1, Date date2)
get Days To Long 
Long d1 = getYmdTime(date1).getTime() / 1000;
Long d2 = getYmdTime(date2).getTime() / 1000;
return Math.abs((d2 - d1)) / (24 * 3600);
DategetDayTime(Date date, int hour, int minute, int second)
get Day Time 
GregorianCalendar gc = new GregorianCalendar();
gc.setTime(date);
gc.set(Calendar.HOUR_OF_DAY, hour);
gc.set(Calendar.MINUTE, minute);
gc.set(Calendar.SECOND, second);
return gc.getTime();