From 8b1e6f5b7ef349fe562082f293e73e710b1b895d Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 21 Mar 2026 14:53:21 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day09-=E5=AD=97=E7=AC=A6?=
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---
 .../src/com/inmind/writer04/Demo13.java       | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 javaSE-day09/src/com/inmind/writer04/Demo13.java

diff --git a/javaSE-day09/src/com/inmind/writer04/Demo13.java b/javaSE-day09/src/com/inmind/writer04/Demo13.java
new file mode 100644
index 0000000..a54fbe6
--- /dev/null
+++ b/javaSE-day09/src/com/inmind/writer04/Demo13.java
@@ -0,0 +1,26 @@
+package com.inmind.writer04;
+
+import java.io.FileWriter;
+import java.io.IOException;
+
+/*
+   刷新和关闭方法的区别
+
+    当我们想将缓冲区的数据输出到文件中，但是该字符输出流还想继续使用时，那就要使用flush方法
+    总结：
+        1.flush方法的作用将缓冲区的数据刷新到硬盘上，但是io流的资源没有释放的
+        2.close方法，释放资源之前会默认调用一次flush，但是调用close方法，该流就不能再使用否则报异常IOException: Stream closed
+ */
+public class Demo13 {
+    public static void main(String[] args) throws IOException {
+        //创建字符输出流
+        FileWriter fw = new FileWriter("a.txt");
+        fw.write("数据在哪里");
+        //主要刷新到文件中
+        fw.flush();
+        fw.write("数据在这");
+
+        fw.close();
+        System.out.println("程序结束");
+    }
+}