Java Utililty Methods Date Before

boolean before(Date point, Date when)
Returns true if the given from Date is before the given when Date otherwise false.

final Calendar pointCalendar = Calendar.getInstance();
pointCalendar.setTime(point);
final Calendar whenCalendar = Calendar.getInstance();
whenCalendar.setTime(when);
return pointCalendar.before(whenCalendar);

boolean before(Date sDate, Date eDate)
before

Calendar sCal = new GregorianCalendar();
sCal.setTime(sDate);
Calendar eCal = new GregorianCalendar();
eCal.setTime(eDate);
return sCal.before(eCal);

boolean beforeDay(final Date date1, final Date date2)
Get date one day before specified one.

if (date1 == null)
 return true;
return getStartOfDate(date1).before(getStartOfDate(date2));

boolean beforeDays(Date date, Integer days)
before Days

if (date == null || days == null)
 return false;
Long time = System.currentTimeMillis() - date.getTime();
return time < (days * 86400000);

boolean beforeTime(Date time1, Date time2)
before Time

Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(time1);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(time2);
return calendar1.before(calendar2);

int daysBefore(Date date1)
days Before

Calendar cal = Calendar.getInstance();
cal.setTime(date1);
long time1 = cal.getTimeInMillis();
long time2 = System.currentTimeMillis();
long between_days = (time2 - time1) / (1000 * 3600 * 24);
return Integer.parseInt(String.valueOf(between_days));

Date getBefore(Date date)
get Before

return getBefore(date, -1);

Calendar getBeforeDate(final int unit, final int period)
get Before Date

Calendar deleteTimeCalendar = Calendar.getInstance();
deleteTimeCalendar.add(unit, -1 * period);
return deleteTimeCalendar;

Date getBeforeDate(String range)
get Before Date

Calendar today = Calendar.getInstance();
if ("week".equalsIgnoreCase(range))
 today.add(4, -1);
else if ("month".equalsIgnoreCase(range))
 today.add(2, -1);
else
 today.clear();
return today.getTime();
...

Date getBeforeHourByCurrentTime(Date now, int mount)
get Before Hour By Current Time

Calendar c = Calendar.getInstance();
c.setTime(now);
c.set(Calendar.HOUR_OF_DAY, c.get(Calendar.HOUR_OF_DAY) + mount);
return c.getTime();