The isSupported() method of ChronoZonedDateTime interface in Java checks if the specified TemporalField is supported or not.
Syntax:
default boolean isSupported(TemporalField field)
Parameter: This method accepts a parameter field which specifies the TemporalField to check, null returns false.
Returns: The function returns true if the field is supported on this date, false if not.
Below programs illustrate the ChronoZonedDateTime.isSupported() method:
Program 1:
// Program to illustrate the isSupported(TemporalField) method  import java.util.*;import java.time.*;import java.time.chrono.*;import java.time.temporal.ChronoField;  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(                ChronoField.DAY_OF_WEEK));    }} |
Output:
2018-12-06T19:21:12.123+05:30[Asia/Calcutta] true
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