From f8e67a3277a2d5d57158fdc0cd75ffc64fe22c74 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 17 Mar 2026 15:40:18 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day08-=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E8=BF=87=E6=BB=A4=E5=99=A8-lambda=E6=94=B9=E5=86=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/com/inmind/filefilter03/Demo15.java   | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 javaSE-day08/src/com/inmind/filefilter03/Demo15.java

diff --git a/javaSE-day08/src/com/inmind/filefilter03/Demo15.java b/javaSE-day08/src/com/inmind/filefilter03/Demo15.java
new file mode 100644
index 0000000..8ead275
--- /dev/null
+++ b/javaSE-day08/src/com/inmind/filefilter03/Demo15.java
@@ -0,0 +1,42 @@
+package com.inmind.filefilter03;
+
+import java.io.File;
+import java.io.FileFilter;
+
+/*
+使用lambda编写文件过滤器的实现
+ */
+public class Demo15 {
+    public static void main(String[] args) {
+        //创建父目录的File对象
+        File file = new File("D:\\io_test");
+        getFiles(file);
+    }
+
+    private static void getFiles(File file) {
+        if (file.exists() && file.isFile()) {
+            return;
+        }
+        //只需要获取.txt文件或者文件夹
+       /* File[] files = file.listFiles(new FileFilter() {
+            @Override
+            public boolean accept(File f) {
+                return (f.isFile() && f.getName().endsWith(".txt"))||f.isDirectory();
+            }
+        });*/
+
+        /*File[] files = file.listFiles((File f)->{
+            return (f.isFile() && f.getName().endsWith(".txt"))||f.isDirectory();
+        });*/
+
+        File[] files = file.listFiles(f-> (f.isFile() && f.getName().endsWith(".txt"))||f.isDirectory());
+
+        for (File f : files) {
+            if (f.isFile()) {
+                System.out.println(f.getName());
+            } else {
+                getFiles(f);
+            }
+        }
+    }
+}