From 2f2bb884c5c949de868f0448857fe70229959ad5 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 17 Mar 2026 10:44:23 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day08-File=E4=B8=AD=E5=88=A4?=
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---
 .../src/com/inmind/file01/FileDemo04.java     | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 javaSE-day08/src/com/inmind/file01/FileDemo04.java

diff --git a/javaSE-day08/src/com/inmind/file01/FileDemo04.java b/javaSE-day08/src/com/inmind/file01/FileDemo04.java
new file mode 100644
index 0000000..1464003
--- /dev/null
+++ b/javaSE-day08/src/com/inmind/file01/FileDemo04.java
@@ -0,0 +1,36 @@
+package com.inmind.file01;
+
+import java.io.File;
+
+/*
+    File中判断的方法
+        public boolean exists() ：此File表示的文件或目录是否实际存在。
+        public boolean isDirectory() ：此File表示的是否为目录。
+        public boolean isFile() ：此File表示的是否为文件。
+
+        注意：不存在的文件，所有的判断方法都是false
+ */
+public class FileDemo04 {
+    public static void main(String[] args) {
+        File file = new File("D:/io_test/a1.txt");
+        System.out.println(file.getAbsolutePath());
+
+        System.out.println(file.exists());//true
+        System.out.println(file.isDirectory());//false
+        System.out.println(file.isFile());//true
+
+        File file1 = new File("D:/io_test");
+        System.out.println(file1.getAbsolutePath());
+
+        System.out.println(file1.exists());//true
+        System.out.println(file1.isDirectory());//true
+        System.out.println(file1.isFile());//false
+
+        File file2 = new File("D:/io_test/b1.txt");
+        System.out.println(file2.getAbsolutePath());
+
+        System.out.println(file2.exists());//true
+        System.out.println(file2.isDirectory());//true
+        System.out.println(file2.isFile());//false
+    }
+}