From db399e6db29c8afc46a86d7a2ef71989b7d733c4 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 30 Jul 2026 11:23:40 +0800
Subject: [PATCH] =?UTF-8?q?s-day01-DateTimeFormater=E7=B1=BB=EF=BC=88?=
 =?UTF-8?q?=E4=BB=A3=E6=9B=BFSimpleDateFormat=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../jdk8_date05/DateTimeFormaterDemo13.java   | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 s-day01/src/com/inmind/jdk8_date05/DateTimeFormaterDemo13.java

diff --git a/s-day01/src/com/inmind/jdk8_date05/DateTimeFormaterDemo13.java b/s-day01/src/com/inmind/jdk8_date05/DateTimeFormaterDemo13.java
new file mode 100644
index 0000000..89eedec
--- /dev/null
+++ b/s-day01/src/com/inmind/jdk8_date05/DateTimeFormaterDemo13.java
@@ -0,0 +1,33 @@
+package com.inmind.jdk8_date05;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/*
+DateTimeFormater类（代替SimpleDateFormat）
+目标：掌握JDK 8新增的DateTimeFormatter格式化器的用法。
+ */
+public class DateTimeFormaterDemo13 {
+    public static void main(String[] args) {
+        //1.创建格式化对象
+        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+        //2.对时间对象格式化
+        LocalDateTime now = LocalDateTime.now();
+        String nowStr = dtf.format(now);// 正向格式化
+        System.out.println(nowStr);
+       /* LocalDate localDate = LocalDate.now();
+        String ldStr = dtf.format(localDate);
+        System.out.println(ldStr);*/
+
+        //3.格式化时间，其实还有一种方案。
+        String nowStr1 = now.format(dtf);//反向格式化
+        System.out.println(nowStr1);
+
+        //4.解析时间：解析时间一般使用LocalDateTime提供的解析方法来解析。(String--->LocalDateTime)
+        System.out.println("-----------------");
+        String dateStr = "2029-12-12 12:12:11";
+        //能不能String转为时间对象，从而进行时间操作
+        LocalDateTime localDateTime = LocalDateTime.parse(dateStr, dtf);
+        System.out.println(localDateTime);
+    }
+}