LocalDate newYears=LocalDate.of(1999, 12, 31);
GregorianCalendar someday=new GregorianCalendar(1999,11,31);
someday.add(Calendar.DAY_OF_MONTH,1000);
int year=someday.get(Calendar.YEAR);
System.out.println(newYears);
System.out.println(someday);
LocalDate newYears=LocalDate.of(1999, 12, 31);
GregorianCalendar someday=new GregorianCalendar(1999,11,31);
someday.add(Calendar.DAY_OF_MONTH,1000);
int year=someday.get(Calendar.YEAR);
System.out.println(newYears);
System.out.println(someday);