在Java中操作日期和时间戳的最佳方法是什么？

LocalDateTime now = LocalDateTime.now();

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
String formatted = now.format(formatter);

LocalDate startDate = LocalDate.of(2022, 1, 1);
LocalDate endDate = LocalDate.of(2022, 1, 10);
Period period = Period.between(startDate, endDate);
int days = period.getDays();

LocalTime startTime = LocalTime.of(9, 0);
LocalTime endTime = LocalTime.of(17, 0);
Duration duration = Duration.between(startTime, endTime);
long hours = duration.toHours();