ChronoZonedDateTime isSupported(TemporalUnit) method in Java with Examples

The isSupported() method of ChronoZonedDateTime interface in Java checks if the specified TemporalUnit is supported or not.

Syntax:

default boolean isSupported(TemporalUnit unit)

Parameter: This method accepts a parameter unit which specifies the TemporalUnit to check, null returns false.

Returns: The function returns true if the unit is supported on this date, false if not.

Below programs illustrate the ChronoZonedDateTime.isSupported() method:

Program 1:

// Program to illustrate the
// isSupported(TemporalUnit) method

import java.util.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.ChronoUnit;

public class GfG {
    public static void main(String[] args)
    {
        // Parses the date
        ChronoZonedDateTime dt1
            = ZonedDateTime.parse(
                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        // Prints the date
        System.out.println(dt1);

        System.out.println(dt1.isSupported(ChronoUnit.DAYS));
    }
}

Output:

2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
true

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#isSupported-java.time.temporal.TemporalUnit-