@Test
public void testBasic() {
System.out.println(Year.now());
System.out.println(Year.of(2015));
System.out.println(Year.isLeap(2016));
Locale locale = Locale.getDefault();
System.out.println(Month.DECEMBER.getDisplayName(TextStyle.FULL, locale));
System.out.println(Month.DECEMBER.getDisplayName(TextStyle.SHORT, locale));
System.out.println(Month.DECEMBER.getDisplayName(TextStyle.NARROW, locale));
System.out.println(Month.DECEMBER.getDisplayName(TextStyle.FULL_STANDALONE, locale));
System.out.println(Month.of(8).ordinal());
System.out.println(Month.AUGUST.minus(2));
System.out.println(YearMonth.now());
System.out.println(MonthDay.now());
System.out.println(DayOfWeek.FRIDAY.plus(2));
System.out.println(DayOfWeek.of(1));
System.out.println(
DayOfWeek.from(LocalDateTime.ofInstant(Instant.now(), ZoneId.systemDefault())));
System.out.println(Period.between(Year.now().atDay(1), LocalDate.now()));
System.out.println(ChronoUnit.DAYS.between(Year.now().atDay(1), LocalDate.now()));
}
@Test
public void testLocalDateTime() {
System.out.println(LocalDateTime.now());
System.out.println(LocalDateTime.of(1994, Month.MAY, 15, 11, 30));
System.out.println(LocalDateTime.ofInstant(Instant.now(), ZoneId.systemDefault()));
System.out.println(LocalDateTime.ofEpochSecond(1450749600, 0, ZoneOffset.ofHours(8)));
System.out.printf("6 months from now: %s%n", LocalDateTime.now().plusMonths(6));
System.out.printf("6 days ago: %s%n", LocalDateTime.now().minusDays(6));
System.out.println(DateTimeFormatter.ISO_DATE_TIME.format(LocalDateTime.now()));
System.out.println(DateTimeFormatter.ofPattern("MM-dd HH:mm").format(LocalDateTime.now()));
}
@Override
public LocalDateTime convert(Date source) {
return source == null
? null
: LocalDateTime.ofInstant(source.toInstant(), ZoneId.systemDefault());
}