Querying Datetime Objects - Java Date Time

Java examples for Date Time:Date Time Query

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Description

Querying Datetime Objects

Demo Code

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.ZonedDateTime;
import java.time.temporal.TemporalQueries;
import java.time.temporal.TemporalQuery;
import java.time.temporal.TemporalUnit;

public class Main {
  public static void main(String[] args) {
    // Get references of the precision and local date queries
    TemporalQuery<TemporalUnit> precisionQuery = TemporalQueries.precision();
    TemporalQuery<LocalDate> localDateQuery = TemporalQueries.localDate();

    // Query a LocalDate
    LocalDate ld = LocalDate.now();
    TemporalUnit precision = ld.query(precisionQuery);
    LocalDate queryDate = ld.query(localDateQuery);
    System.out.println("Precision of LocalDate: " + precision);
    System.out.println("LocalDate of LocalDate: " + queryDate);

    // Query a LocalTime
    LocalTime lt = LocalTime.now();
    precision = lt.query(precisionQuery);
    queryDate = lt.query(localDateQuery);
    System.out.println("Precision of LocalTime: " + precision);
    System.out.println("LocalDate of LocalTime: " + queryDate);

    // Query a ZonedDateTime
    ZonedDateTime zdt = ZonedDateTime.now();
    precision = zdt.query(precisionQuery);
    queryDate = zdt.query(localDateQuery);
    System.out.println("Precision of ZonedDateTime: " + precision);
    System.out.println("LocalDate of ZonedDateTime: " + queryDate);
  }/*from  www  .  jav  a2s. c  o  m*/
}

Result


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