Compare ZonedDateTime Objects in Java
Methods inherited from interface java.time.chrono.ChronoZonedDateTime
- default boolean isAfter(ChronoZonedDateTime<?> other) - Checks if the instant of this date-time is after that of the specified date-time.
- default boolean isBefore(ChronoZonedDateTime<?> other) - Checks if the instant of this date-time is before that of the specified date-time.
- default boolean isEqual(ChronoZonedDateTime<?> other) - Checks if the instant of this date-time is equal to that of the specified date-time.
- default int compareTo(ChronoZonedDateTime<?> other) - Compares this date-time to another date-time, including the chronology.
import java.time.LocalDateTime; import java.time.ZoneId; import java.time.ZonedDateTime; /** * Program to demonstrate ZonedDateTime Class APIs. * @author javaguides.net * */ public class ZonedDateTimeExample { public static void main(String[] args) { compareZonedDateTimeObjects(); } private static void compareZonedDateTimeObjects() { LocalDateTime dateTime = LocalDateTime.now(); ZonedDateTime dt1 = ZonedDateTime.of(dateTime, ZoneId.of("America/New_York")); ZonedDateTime dt2 = ZonedDateTime.of(dateTime, ZoneId.of("America/New_York")); ZonedDateTime dt3 = ZonedDateTime.of(dateTime, ZoneId.of("UTC")); // Using isEqual() if (dt1.isEqual(dt2)) { System.out.println("dateTime1 and dateTime2 are equal."); } else { System.out.println("dateTime1 and dateTime2 are not equal."); } // Using compareTo() if (dt1.compareTo(dt2) == 0) { System.out.println("dateTime1 and dateTime2 are equal."); } else { System.out.println("dateTime1 and dateTime2 are not equal."); } // Using isAfter() if (dt2.isAfter(dt3)) { System.out.println("dateTime2 is after dateTime3"); } // Using isBefore() if (dt3.isBefore(dt1)) { System.out.println("dateTime3 is before dateTime1"); } } } Output:
dateTime1 and dateTime2 are equal. dateTime1 and dateTime2 are equal. dateTime2 is after dateTime3 dateTime3 is before dateTime1
Reference
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