query() method of an ChronoZonedDateTime interface used to query this ChronoZonedDateTime using the specified query as parameter.The TemporalQuery object passed as parameter define the logic to be used to obtain the result from this ChronoZonedDateTime.
Syntax:
default <R> R query(TemporalQuery<R> query)
Parameters: This method accepts only one parameter query which is the query to invoke.
Return value: This method returns the query result, null may be returned.
Exception: This method throws following Exceptions:
- DateTimeException – if unable to query .
- ArithmeticException – if numeric overflow occurs.
Below programs illustrate the query() method:
Program 1:
// Java program to demonstrate// ChronoZonedDateTime.query() method import java.time.*;import java.time.chrono.*;import java.time.temporal.*; public class GFG { public static void main(String[] args) { // create ChronoZonedDateTime object ChronoZonedDateTime zlt = ZonedDateTime.parse( "2018-10-25T23:12:31.123+02:00[Europe/Paris]"); // apply the query method of ChronoZonedDateTime class String value = zlt.query( TemporalQueries.precision()) .toString(); // print the result System.out.println("Precision value" + " for ChronoZonedDateTime is " + value); }} |
Output:
Precision value for ChronoZonedDateTime is Nanos
Program 2:
// Java program to demonstrate// ChronoZonedDateTime.query() method import java.time.*;import java.time.chrono.*;import java.time.temporal.*; public class GFG { public static void main(String[] args) { // create ChronoZonedDateTime object ChronoZonedDateTime zlt = ZonedDateTime.parse( "2018-10-25T23:12:31.123+02:00[Europe/Paris]"); // apply query method of ChronoZonedDateTime class // print the result System.out.println("offset value for " + "ChronoZonedDateTime is " + zlt.query( TemporalQueries.offset())); }} |
Output:
offset value for ChronoZonedDateTime is +02:00
