diff --git a/.gitignore b/.gitignore
index 9154f4c..b67af11 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,26 +1,39 @@
-# ---> Java
-# Compiled class file
-*.class
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
 
-# Log file
-*.log
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+.idea/*
 
-# BlueJ files
-*.ctxt
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
 
-# Mobile Tools for Java (J2ME)
-.mtj.tmp/
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
 
-# Package Files #
-*.jar
-*.war
-*.nar
-*.ear
-*.zip
-*.tar.gz
-*.rar
-
-# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
-hs_err_pid*
-replay_pid*
+### VS Code ###
+.vscode/
 
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..88ce694
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>cc.niushuai.demo</groupId>
+    <artifactId>design-pattern</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+            <version>5.8.23</version>
+        </dependency>
+    </dependencies>
+
+    <repositories>
+        <repository>
+            <id>aliyun</id>
+            <url>https://maven.aliyun.com/repository/public</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>aliyun-plugin</id>
+            <url>https://maven.aliyun.com/repository/public</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </pluginRepository>
+    </pluginRepositories>
+</project>
\ No newline at end of file
diff --git a/src/main/java/cc/niushuai/demo/designpattern/Application.java b/src/main/java/cc/niushuai/demo/designpattern/Application.java
new file mode 100644
index 0000000..d3f1fed
--- /dev/null
+++ b/src/main/java/cc/niushuai/demo/designpattern/Application.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2023 niushuai233 niushuai.cc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cc.niushuai.demo.designpattern;
+
+import cn.hutool.core.lang.ConsoleTable;
+import cn.hutool.core.util.ClassUtil;
+
+import java.util.Set;
+
+/**
+ * main class
+ *
+ * @author niushuai233
+ * @date 2023/12/18 15:11
+ * @since 0.0.1
+ */
+public class Application {
+
+    public static final String AUTHOR = "niushuai233";
+
+    public static void main(String[] args) {
+
+        printAllClasses();
+    }
+
+    /**
+     * 控制台打印所有类
+     *
+     * @author niushuai233
+     * @date 2023/12/18 15:19
+     * @since 0.0.1
+     */
+    private static void printAllClasses() {
+        Set<Class<?>> allUtils = ClassUtil.scanPackage("cc.niushuai.demo.designpattern");
+
+        final ConsoleTable consoleTable = ConsoleTable.create().addHeader("类名", "所在包");
+        for (Class<?> clazz : allUtils) {
+            consoleTable.addBody(clazz.getSimpleName(), clazz.getPackage().getName());
+        }
+        consoleTable.print();
+    }
+}