시간을 제외하고 Java에서 날짜를 비교하는 방법은 무엇입니까?

DateTime first = ...;
DateTime second = ...;

LocalDate firstDate = first.toLocalDate();
LocalDate secondDate = second.toLocalDate();

return firstDate.compareTo(secondDate);

return DateTimeComparator.getDateOnlyInstance().compare(first, second);

Calendar firstCalendar = Calendar.getInstance();
Calendar secondCalendar = Calendar.getInstance();

firstCalendar.set(Calendar.HOUR_OF_DAY, 0);
firstCalendar.set(Calendar.MINUTE, 0);
firstCalendar.set(Calendar.SECOND, 0);
firstCalendar.set(Calendar.MILLISECOND, 0);

secondCalendar.set(Calendar.HOUR_OF_DAY, 0);
secondCalendar.set(Calendar.MINUTE, 0);
secondCalendar.set(Calendar.SECOND, 0);
secondCalendar.set(Calendar.MILLISECOND, 0);

return firstCalendar.compareTo(secondCalendar);