diff --git a/.idea/.gitignore b/.idea/.gitignore
deleted file mode 100644
index 13566b8..0000000
--- a/.idea/.gitignore
+++ /dev/null
@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index 87c4a4d..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/JavaTemplate_Project.iml" filepath="$PROJECT_DIR$/JavaTemplate_Project.iml" />
-      <module fileurl="file://$PROJECT_DIR$/application/application.iml" filepath="$PROJECT_DIR$/application/application.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.gitignore b/01_Intellij_Java_universal_20240419/untitled/.gitignore
similarity index 100%
rename from .gitignore
rename to 01_Intellij_Java_universal_20240419/untitled/.gitignore
diff --git a/01_Intellij_Java_universal_20240419/untitled/.idea/.gitignore b/01_Intellij_Java_universal_20240419/untitled/.idea/.gitignore
new file mode 100644
index 0000000..359bb53
--- /dev/null
+++ b/01_Intellij_Java_universal_20240419/untitled/.idea/.gitignore
@@ -0,0 +1,3 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
diff --git a/.idea/misc.xml b/01_Intellij_Java_universal_20240419/untitled/.idea/misc.xml
similarity index 100%
rename from .idea/misc.xml
rename to 01_Intellij_Java_universal_20240419/untitled/.idea/misc.xml
diff --git a/01_Intellij_Java_universal_20240419/untitled/.idea/modules.xml b/01_Intellij_Java_universal_20240419/untitled/.idea/modules.xml
new file mode 100644
index 0000000..0bfbc4d
--- /dev/null
+++ b/01_Intellij_Java_universal_20240419/untitled/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Application.iml" filepath="$PROJECT_DIR$/Application.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/01_Intellij_Java_universal_20240419/untitled/.idea/vcs.xml
similarity index 68%
rename from .idea/vcs.xml
rename to 01_Intellij_Java_universal_20240419/untitled/.idea/vcs.xml
index 94a25f7..b2bdec2 100644
--- a/.idea/vcs.xml
+++ b/01_Intellij_Java_universal_20240419/untitled/.idea/vcs.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/JavaTemplate_Project.iml b/01_Intellij_Java_universal_20240419/untitled/Application.iml
similarity index 100%
rename from JavaTemplate_Project.iml
rename to 01_Intellij_Java_universal_20240419/untitled/Application.iml
diff --git a/01_Intellij_Java_universal_20240419/untitled/src/learn_20240419/Main.java b/01_Intellij_Java_universal_20240419/untitled/src/learn_20240419/Main.java
new file mode 100644
index 0000000..6086674
--- /dev/null
+++ b/01_Intellij_Java_universal_20240419/untitled/src/learn_20240419/Main.java
@@ -0,0 +1,7 @@
+package learn_20240419;
+
+public class Main {
+    public static void main (String[] args){
+        System.out.println("test");
+    }
+}
diff --git a/application/application.iml b/application/application.iml
deleted file mode 100644
index c90834f..0000000
--- a/application/application.iml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/application/src/Main.java b/application/src/Main.java
deleted file mode 100644
index fe7aa2b..0000000
--- a/application/src/Main.java
+++ /dev/null
@@ -1,15 +0,0 @@
-//TIP 要<b>运行</b>代码，请按 <shortcut actionId="Run"/> 或
-// 点击装订区域中的 <icon src="AllIcons.Actions.Execute"/> 图标。
-public class Main {
-    public static void main(String[] args) {
-        //TIP 当文本光标位于高亮显示的文本处时按 <shortcut actionId="ShowIntentionActions"/>
-        // 查看 IntelliJ IDEA 建议如何修正。
-        System.out.printf("Hello and welcome!");
-
-        for (int i = 1; i <= 5; i++) {
-            //TIP 按 <shortcut actionId="Debug"/> 开始调试代码。我们已经设置了一个 <icon src="AllIcons.Debugger.Db_set_breakpoint"/> 断点
-            // 但您始终可以通过按 <shortcut actionId="ToggleLineBreakpoint"/> 添加更多断点。
-            System.out.println("i = " + i);
-        }
-    }
-}
\ No newline at end of file
diff --git a/application/src/app_20240418/Main.java b/application/src/app_20240418/Main.java
deleted file mode 100644
index d536baa..0000000
--- a/application/src/app_20240418/Main.java
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
-*   Code by 20240418
-*   Java 面向对象程序设计课程
-*   Design by JRNitre
-* */
-
-package app_20240418;
-
-public class Main {
-    public static void main (String[] args){
-        student s1 = new student("Dog meat",10,"Computer");
-
-        s1.getStudentInfo();
-    }
-}
diff --git a/application/src/app_20240418/person.java b/application/src/app_20240418/person.java
deleted file mode 100644
index f4bc510..0000000
--- a/application/src/app_20240418/person.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package app_20240418;
-
-public class person {
-    private String name;
-    private int age;
-
-    public person (String name, int age){
-        this.name = name;
-        this.age = age;
-    }
-
-    public String getPerson_name(){
-        return this.name;
-    }
-    public int getPersion_age(){
-        return this.age;
-    }
-}
diff --git a/application/src/app_20240418/student.java b/application/src/app_20240418/student.java
deleted file mode 100644
index 4f5a593..0000000
--- a/application/src/app_20240418/student.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package app_20240418;
-
-public class student extends person{
-    private String dep;
-
-    public student(String name, int age, String dep){
-        // 调用父类构造函数进行构造
-        super(name,age);
-        this.dep = dep;
-    }
-
-    public void setStudent_dep (String dep){
-        this.dep = dep;
-    }
-
-    public void getStudentInfo(){
-        System.out.println(getPerson_name());
-        System.out.println(getPersion_age());
-        System.out.println(this.dep);
-    }
-}