Java Date Time - Year.query() Examples

package com.logicbig.example.year;

import java.time.Year;
import java.time.chrono.Chronology;
import java.time.temporal.TemporalQueries;
import java.time.temporal.TemporalUnit;

public class QueryExample {

    public static void main(String... args) {
        Year y = Year.of(2011);
        System.out.println(y);

        Chronology c = y.query(TemporalQueries.chronology());
        System.out.println(c);

        TemporalUnit u = y.query(TemporalQueries.precision());
        System.out.println(u);
    }
}

package com.logicbig.example.year;

import java.time.Year;
import java.time.temporal.ChronoField;
import java.time.temporal.TemporalQuery;

public class QueryExample2 {

    public static void main(String... args) {
        Year y = Year.of(1900);
        Boolean b = y.query(firstWorldWarPeriodQuery);
        System.out.println(b);

        Year y2 = Year.of(1915);
        Boolean b2 = y2.query(firstWorldWarPeriodQuery);
        System.out.println(b2);
    }

    private static final TemporalQuery<Boolean> firstWorldWarPeriodQuery = temporal -> {
        if (temporal.isSupported(ChronoField.YEAR)) {
            long l = temporal.getLong(ChronoField.YEAR);
            return l > 1914 && l < 1918;
        }
        return false;
    };
}