Java8中如何使用預先定義的格式化工具去解析或格式化日期

package com.shxt.demo02; import java.time.LocalDate; import java.time.format.DateTimeFormatter; public class Demo17 { public static void main(String[] args) { String dayAfterTommorrow = "20180205"; LocalDate formatted = LocalDate.parse(dayAfterTommorrow, DateTimeFormatter.BASIC_ISO_DATE); System.out.println(dayAfterTommorrow+" 格式化后的日期为: "+formatted); } }