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What are time temporal fields in Java?
A temporal field is a field of date-time, such as month-of-year or hour-of-minute. These fields are represented by the TemporalField interface and the ChronoField class implements this interface.
Following are the list of various temporal fields regarding time supported by the ChronoField class −
Field | Description |
---|---|
CLOCK_HOUR_OF_AMPM | This field represents the clock hour of a day (am/pm). |
AMPM_OF_DAY | This field represents the ap/pm of the day. |
CLOCK_HOUR_OF_DAY | This field represents the clock hour of a day. |
HOUR_OF_AMPM | This field represents the hour of a day (am/pm). |
HOUR_OF_DAY | This field represents the hour of a day. |
INSTANT_SECONDS | This field represents the instant epoch seconds. |
MICRO_OF_DAY | This field represents the micro of a day. |
MICRO_OF_SECOND | This field represents the micro of a second. |
MILLI_OF_DAY | This field represents the milli of a day. |
MILLI_OF_SECOND | This field represents the milli of a second. |
MINUTE_OF_DAY | This field represents the minute of the day. |
MINUTE_OF_HOUR | This field represents the hour of the day. |
MONTH_OF_YEAR | This field represents the month of the year. |
NANO_OF_DAY | This field represents the nano of the day. |
NANO_OF_SECOND | This field represents the nano of the second. |
OFFSET_SECONDS | This field represents the offset from UTC/Greenwich. |
PROLEPTIC_MONTH | This field represents the proleptic-month. |
SECOND_OF_DAY | This field represents the second of the day. |
SECOND_OF_MINUTE | This field represents the second of the minute. |
The get() or getLong() methods of the classes LocalDate accepts a temporal field as a parameter and gets the value of the given field in the current object.
Example
import java.time.LocalTime; import java.time.temporal.ChronoField; public class Demo { public static void main(String args[]) { //Instantiating the LocalDateTime class LocalTime lTime = LocalTime.now(); System.out.println(lTime); int field = lTime.get(ChronoField.CLOCK_HOUR_OF_AMPM); System.out.println("Hour of the day: "+field); field = lTime.get(ChronoField.AMPM_OF_DAY); System.out.println("Am or Pm: "+field); field = lTime.get(ChronoField.CLOCK_HOUR_OF_DAY); System.out.println("Hour of the day: "+field); long epoch = lTime.getLong(ChronoField.MINUTE_OF_DAY); System.out.println("Minute of the day: "+epoch); field = lTime.get(ChronoField.MINUTE_OF_HOUR); System.out.println("Minutes of the hour: "+field); field = lTime.get(ChronoField.SECOND_OF_DAY); System.out.println("Seconds of the day: "+field); field = lTime.get(ChronoField.SECOND_OF_MINUTE); System.out.println("Seconds of the minute: "+field); } }
Output
17:02:46.294 Hour of the day: 5 Am or Pm: 1 Hour of the day: 17 Minute of the day: 1022 Minutes of the hour: 2 Seconds of the day: 61366 Seconds of the minute: 46
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