Java 8 has a whole new library for dates and times in the package java.time which is very welcome thing to anyone who has had to use JodaTime before or hassle with making it's own date processing helper methods. Many classes in this package represent timestamps and have helper methods like
getHour() to get hours from timestamp,
getMinute() to get minutes from timestamp,
getNano() to get nanos from timestamp etc...
I noticed that they don't have a method called
getMillis() to get the millis of the time stamp. Instead one would have to call method
get(ChronoField.MILLI_OF_SECOND). To me it seems like an inconsistency in the library. Does anyone know why such a method is missing, or as Java 8 is still in development is there a possibility that it will be added later?
The classes defined here represent the principal date-time concepts, including instants, durations, dates, times, time-zones and periods. They are based on the ISO calendar system, which is the de facto world calendar following the proleptic Gregorian rules. All the classes are immutable and thread-safe.
Each date time instance is composed of fields that are conveniently made available by the APIs. For lower level access to the fields refer to the
java.time.temporalpackage. Each class includes support for printing and parsing all manner of dates and times. Refer to the
java.time.formatpackage for customization options...
Example of this kind of class:
A date-time without a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30.
LocalDateTimeis an immutable date-time object that represents a date-time, often viewed as year-month-day-hour-minute-second. Other date and time fields, such as day-of-year, day-of-week and week-of-year, can also be accessed. Time is represented to nanosecond precision. For example, the value "2nd October 2007 at 13:45.30.123456789" can be stored in a
get(), rather than giving them individual, unique names. If it bothers you, write a class that inherits the original class, and put your own
getMillis()method in the new class.