java calculate age from date

/**
 * @author lautturi.com
 * Java example: calculate age from localdate java
 */

import java.util.*;
import java.time.*;
import java.io.*;

public class Lautturi {

	public static void main(String[] args) {
		LocalDate today = LocalDate.now();
		LocalDate birthday = LocalDate.of(2001, 12, 16);

		Period period = Period.between(birthday, today);

		System.out.println(period.getYears()); // age
		System.out.println(period.getMonths());
		System.out.println(period.getDays()); 
	}

}