java.time.Year.getLong() 方法示例

package com.codingdict;

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

public class YearDemo {
   public static void main(String[] args) {

      Year date = Year.of(2017);
      System.out.println(date.getLong(ChronoField.YEAR_OF_ERA));  
   }
}