Java Data Type - 如何创造时间不同年和月

import java.time.Period;
public class Main {
  public static void main(String[] argv) {
    int yearsAtOctanner = 4;
    int monthsAtOctanner = 6;
    Period periodAtOct = Period.ofYears(yearsAtOctanner).withMonths(monthsAtOctanner);
    System.out.println("periodAtOct = " + periodAtOct);
  }
}