Java 8 的日期時間新用法

1.// The current date and time

LocalDateTime.now();

// construct from values

LocalDate.of(2012, 12, 12);

LocalDate.of(2012, Month.DECEMBER, 12);

// Somewhere in the middle of 1970

LocalDate.ofEpochDay(150);

// the train I took home today

LocalTime.of(17, 18);

// From a String

2.LocalDateTime timePoint = ...

LocalDate theDate = timePoint.getDate();

int monthAsInt = timePoint.getMonthValue();

Month month = timePoint.getMonth();

int day = timePoint.getDayOfMonth();

    day = timePoint.getDayOfYear();

timePoint.getSecond();http://www.huiyi8.com/jiaoben/

timePoint.getNano(); JQuery特效 

3.LocalDateTime timePoint = ...

// Set the value, returning a new object

LocalDateTime another = timePoint.withDayOfMonth(10).withYear(2010);

// You can use direct manipulation methods, or pass a value and field pair

LocalDateTime yetAnother = another.plusWeeks(3).plus(3, WEEKS);

4.import static javax.time.calendrical.DateTimeAdjusters.*;

LocalDateTime timePoint = ...

// Statically imported (see above)

foo = timePoint.with(lastDayOfMonth());

bar = timePoint.with(firstDayOfYear());

// Adjusters can also be parameterised

timePoint.with(lastInMonth(TUESDAY));

timePoint.with(previousOrSame(WEDNESDAY));

// Using value classes as adjusters

timePoint.with(LocalTime.now());

5.LocalDate date = ...

date.truncatedTo(DAYS);

LocalTime time = ...

time.truncatedTo(MICROS);

time.truncatedTo(SECONDS)