diff --git a/day11/src/com/inmind/final_class/Demo01.java b/day11/src/com/inmind/final_class01/Demo01.java
similarity index 93%
rename from day11/src/com/inmind/final_class/Demo01.java
rename to day11/src/com/inmind/final_class01/Demo01.java
index 99eacc7..bd32d7b 100644
--- a/day11/src/com/inmind/final_class/Demo01.java
+++ b/day11/src/com/inmind/final_class01/Demo01.java
@@ -1,4 +1,4 @@
-package com.inmind.final_class;
+package com.inmind.final_class01;
 /*
 final:被final修饰的内容，不能够被改变的
 
diff --git a/day11/src/com/inmind/final_class/Fu.java b/day11/src/com/inmind/final_class01/Fu.java
similarity index 79%
rename from day11/src/com/inmind/final_class/Fu.java
rename to day11/src/com/inmind/final_class01/Fu.java
index 1fd3e48..3f21a6d 100644
--- a/day11/src/com/inmind/final_class/Fu.java
+++ b/day11/src/com/inmind/final_class01/Fu.java
@@ -1,4 +1,4 @@
-package com.inmind.final_class;
+package com.inmind.final_class01;
 
 public final class Fu {
     int num = 10;
diff --git a/day11/src/com/inmind/final_local_var03/Demo03.java b/day11/src/com/inmind/final_local_var03/Demo03.java
new file mode 100644
index 0000000..3be8ad3
--- /dev/null
+++ b/day11/src/com/inmind/final_local_var03/Demo03.java
@@ -0,0 +1,41 @@
+package com.inmind.final_local_var03;
+
+import java.util.Arrays;
+
+/*
+final关键字用于修饰局部变量
+局部变量：
+1.基本数据类型：保存的值真正的值，表示该值赋值之后不能被修改的
+2.引用数据类型: 保存的值是地址值。引用数据类型地址不变，所指向的内容可以改变
+
+
+ */
+public class Demo03 {
+    public static void main(String[] args) {
+        method();
+    }
+
+    public static void method(){
+        //基本数据类型的局部变量
+        final int i = 10;
+        //i = 20;//被final修饰的局部变量，不能被修改
+        System.out.println(i);
+        System.out.println("=========================");
+
+        //引用数据类型的局部变量
+        /*int[] arr1 = new int[4];
+        int[] arr2 = new int[]{1,2,3};*/
+        final int[] arr = {1,2,3};//arr中保存是地址值
+        System.out.println(Arrays.toString(arr));
+        arr[0] = 10;
+        arr[1] = 20;
+        arr[2] = 30;
+        System.out.println(Arrays.toString(arr));
+
+        //类的对象
+        final Student s = new Student(18, "张三");
+        s.setName("张三丰");
+        System.out.println(s.getName());
+
+    }
+}
diff --git a/day11/src/com/inmind/final_local_var03/Student.java b/day11/src/com/inmind/final_local_var03/Student.java
new file mode 100644
index 0000000..1106402
--- /dev/null
+++ b/day11/src/com/inmind/final_local_var03/Student.java
@@ -0,0 +1,27 @@
+package com.inmind.final_local_var03;
+
+public class Student {
+    private int age;
+    private String name;
+
+    public Student(int age, String name) {
+        this.age = age;
+        this.name = name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/day11/src/com/inmind/final_method/Demo02.java b/day11/src/com/inmind/final_method02/Demo02.java
similarity index 90%
rename from day11/src/com/inmind/final_method/Demo02.java
rename to day11/src/com/inmind/final_method02/Demo02.java
index 570eaa6..d2715cf 100644
--- a/day11/src/com/inmind/final_method/Demo02.java
+++ b/day11/src/com/inmind/final_method02/Demo02.java
@@ -1,4 +1,4 @@
-package com.inmind.final_method;
+package com.inmind.final_method02;
 
 public class Demo02 {
     public static void main(String[] args) {
diff --git a/day11/src/com/inmind/final_method/Fu.java b/day11/src/com/inmind/final_method02/Fu.java
similarity index 84%
rename from day11/src/com/inmind/final_method/Fu.java
rename to day11/src/com/inmind/final_method02/Fu.java
index 665098b..9d51117 100644
--- a/day11/src/com/inmind/final_method/Fu.java
+++ b/day11/src/com/inmind/final_method02/Fu.java
@@ -1,4 +1,4 @@
-package com.inmind.final_method;
+package com.inmind.final_method02;
 /*
 final关键字用于修饰方法:该方法就不能被子类重写
  */
diff --git a/day11/src/com/inmind/final_method/Zi.java b/day11/src/com/inmind/final_method02/Zi.java
similarity index 88%
rename from day11/src/com/inmind/final_method/Zi.java
rename to day11/src/com/inmind/final_method02/Zi.java
index 380ef0b..adb944f 100644
--- a/day11/src/com/inmind/final_method/Zi.java
+++ b/day11/src/com/inmind/final_method02/Zi.java
@@ -1,4 +1,4 @@
-package com.inmind.final_method;
+package com.inmind.final_method02;
 
 public class Zi extends Fu{
     //ctrl+o