query() method of an Year class used to query this Year using the specified query as parameter.The TemporalQuery object passed as parameter define the logic to be used to obtain the result from this Year.
Syntax:
public <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// Year.query() method import java.time.*;import java.time.temporal.*; public class GFG { public static void main(String[] args) { // create Year object Year ym = Year.of(2019); // apply query method of Year class String value = ym.query(TemporalQueries.precision()).toString(); // print the result System.out.println("Precision value"+" for Year is " + value); }} |
Output:
Precision value for Year is Years
Program 2: Showing if query did not found the required object then it returns null.
// Java program to demonstrate// Year.query() method import java.time.*;import java.time.temporal.*; public class GFG { public static void main(String[] args) { // create Year object Year ym = Year.of(2019); // apply query method of Year class // print the result System.out.println("offset value for Year is " + ym.query(TemporalQueries.offset())); }} |
Output:
offset value for Year is null
References: https://docs.oracle.com/javase/10/docs/api/java/time/Year.html#query(java.time.temporal.TemporalQuery)
