创建自定义日期调整器

import static java.time.DayOfWeek.FRIDAY;

import static java.time.DayOfWeek.MONDAY;

import static java.time.DayOfWeek.SATURDAY;/** 来 自 时 代 J a v a - nowjava.com**/

import static java.time.DayOfWeek.SUNDAY;


import java.time.DayOfWeek;

import java.time.LocalDate;

import java.time.LocalTime;

import java.time.Month;

import java.time.ZoneId;

import java.time.ZonedDateTime;

import java.time.temporal.TemporalAdjuster;

import java.time.temporal.TemporalAdjusters;
/*来自 时代Java公众号 - nowjava.com*/

public class Main {

  public static void main(String[] args) {

    LocalDate ld1 = LocalDate.of(2013, Month.DECEMBER, 12); // Thursday

    LocalDate ld2 = LocalDate.of(2013, Month.DECEMBER, 13); // Friday

    LocalDate ld3 = LocalDate.of(2013, Month.DECEMBER, 14); // Saturday


    LocalDate ld1Adjusted = ld1.with(WEEKDAYS_WITH_NO_FRIDAY_13);

    System.out.println(ld1 + " adjusted to " + ld1Adjusted);


    LocalDate ld2Adjusted = ld2.with(WEEKDAYS_WITH_NO_FRIDAY_13);

    System.out.println(ld2 + " adjusted to " + ld2Adjusted);


    LocalDate ld3Adjusted = ld3.with(WEEKDAYS_WITH_NO_FRIDAY_13);

    System.out.println(ld3 + " adjusted to " + ld3Adjusted);


    // Use it to adjust a ZonedDateTime

    ZonedDateTime zdt = ZonedDateTime.of(ld2, LocalTime.of(8, 45),

        ZoneId.of("America/Chicago"));

    ZonedDateTime zdtAdjusted = zdt.with(WEEKDAYS_WITH_NO_FRIDAY_13);

    System.out.println(zdt + " adjusted to " + zdtAdjusted);

  }


  static TemporalAdjuster WEEKDAYS_WITH_NO_FRIDAY_13 = TemporalAdjusters

      .ofDateAdjuster(Main::getWeekDayNoFriday13);


  private static LocalDate getWeekDayNoFriday13(LocalDate da