diff --git a/.github/workflows/maven-publish.yml b/.github/workflows/maven-publish.yml
new file mode 100644
index 00000000..dab69fef
--- /dev/null
+++ b/.github/workflows/maven-publish.yml
@@ -0,0 +1,34 @@
+# This workflow will build a package using Maven and then publish it to GitHub packages when a release is created
+# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#apache-maven-with-a-settings-path
+
+name: Maven Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JDK 11
+      uses: actions/setup-java@v3
+      with:
+        java-version: '11'
+        distribution: 'temurin'
+        server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
+        settings-path: ${{ github.workspace }} # location for the settings.xml file
+
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml
+
+    - name: Publish to GitHub Packages Apache Maven
+      run: mvn deploy -s $GITHUB_WORKSPACE/settings.xml
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
diff --git a/README.md b/README.md
index 9ee848d5..f5fa67eb 100644
--- a/README.md
+++ b/README.md
@@ -1,59 +1,6 @@
-Java8InAction
-===============
+# README
 
-This repository contains all the source code for the examples and quizzes in the book Java 8 in Action: Lambdas, Streams and functional-style programming.
+jdk必须是11
 
-You can purchase the book here: [http://manning.com/urma/](http://manning.com/urma/) or on Amazon
-
-The source code for all examples can be found in the directory [src/main/java/lambdasinaction](https://github.com/java8/Java8InAction/tree/master/src/main/java/lambdasinaction)
-
-* Chapter 1: Java 8: why should you care?
-* Chapter 2: Passing code with behavior parameterization
-* Chapter 3: Lambda expressions
-* Chapter 4: Working with Streams
-* Chapter 5: Processing data with streams
-* Chapter 6: Collecting data with streams
-* Chapter 7: Parallel data processing and performance
-* Chapter 8: Refactoring, testing, debugging
-* Chapter 9: Default methods
-* Chapter 10: Using Optional as a better alternative to null
-* Chapter 11: CompletableFuture: composable asynchronous programming
-* Chapter 12: New Date and Time API
-* Chapter 13: Thinking functionally
-* Chapter 14: Functional programming techniques
-* Chapter 15: Blending OOP and FP: comparing Java 8 and Scala
-* Chapter 16: Conclusions and "where next" for Java
-* Appendix A: Miscellaneous language updates
-* Appendix B: Miscellaneous library updates
-* Appendix C: Performing multiple operations in parallel on a Stream
-* Appendix D: Lambdas and JVM bytecode
-We will update the repository as we update the book. Stay tuned!
-
-### Make sure to have JDK8 installed
-The latest binary can be found here: http://www.oracle.com/technetwork/java/javase/overview/java8-2100321.html
-
-$ java -version
-
-java version "1.8.0_05"
-Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
-Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
-
-
-You can download a preview version here: https://jdk8.java.net/
-
-### Compile/Run the examples
-Using maven:
-
-$ mvn compile
-
-$ cd target/classes
-
-$ java lambdasinaction/chap1/FilteringApples
-
-
-Alternatively you can compile the files manually inside the directory src/main/java
-
-You can also import the project in your favorite IDE:
-    * In IntelliJ use "File->Open" menu and navigate to the folder where the project resides
-    * In Eclipse use "File->Import->Existing Maven Projects" (also modify "Reduntant super interfaces" to report as Warnings instead of Errors
-    * In Netbeans use "File->Open Project" menu
\ No newline at end of file
+tools.jar 没了
+模块化
diff --git a/README_my.md b/README_my.md
new file mode 100644
index 00000000..f6ab100d
--- /dev/null
+++ b/README_my.md
@@ -0,0 +1,10 @@
+# README
+
+## Chap. 1
+- lambdasinaction.chap1.FilteringApples
+- java.util.function.Predicate
+- java.util.Spliterator
+- 
+
+
+java.util.function包下面一堆接口
diff --git a/imgs/Predicate.png b/imgs/Predicate.png
new file mode 100644
index 00000000..18ddd49d
Binary files /dev/null and b/imgs/Predicate.png differ
diff --git a/imgs/Spliterator.png b/imgs/Spliterator.png
new file mode 100644
index 00000000..46f5e343
Binary files /dev/null and b/imgs/Spliterator.png differ
diff --git a/pom.xml b/pom.xml
index 10e5035e..487b505a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,6 +10,8 @@
     
     <properties>
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+      <maven.compiler.source>11</maven.compiler.source>
+      <maven.compiler.target>11</maven.compiler.target>
     </properties>
 
   <dependencies>
@@ -37,8 +39,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.1</version>
         <configuration>
-          <source>1.9</source>
-          <target>1.9</target>
+          <source>11</source>
+          <target>11</target>
         </configuration>
       </plugin>
       <plugin>
diff --git a/src/main/java/lambdasinaction/chap1/FilteringApples.java b/src/main/java/lambdasinaction/chap1/FilteringApples.java
index 51afc8cb..5e4c560d 100644
--- a/src/main/java/lambdasinaction/chap1/FilteringApples.java
+++ b/src/main/java/lambdasinaction/chap1/FilteringApples.java
@@ -1,6 +1,8 @@
 package lambdasinaction.chap1;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.function.Predicate;
 
 public class FilteringApples{
@@ -9,7 +11,8 @@ public static void main(String ... args){
 
         List<Apple> inventory = Arrays.asList(new Apple(80,"green"),
                                               new Apple(155, "green"),
-                                              new Apple(120, "red"));	
+                                              new Apple(120, "red"));
+        System.out.println(inventory.getClass().getName());//java.util.Arrays$ArrayList
 
         // [Apple{color='green', weight=80}, Apple{color='green', weight=155}]
         List<Apple> greenApples = filterApples(inventory, FilteringApples::isGreenApple);
@@ -96,6 +99,7 @@ public void setColor(String color) {
             this.color = color;
         }
 
+        @Override
         public String toString() {
             return "Apple{" +
                    "color='" + color + '\'' +
diff --git a/src/main/java/lambdasinaction/chap2/FilteringApples.java b/src/main/java/lambdasinaction/chap2/FilteringApples.java
index 0f61fd08..c4dd542f 100644
--- a/src/main/java/lambdasinaction/chap2/FilteringApples.java
+++ b/src/main/java/lambdasinaction/chap2/FilteringApples.java
@@ -1,12 +1,15 @@
 package lambdasinaction.chap2;
 
-import java.util.*;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 
 public class FilteringApples{
 
 	public static void main(String ... args){
 
-		List<Apple> inventory = Arrays.asList(new Apple(80,"green"), new Apple(155, "green"), new Apple(120, "red"));	
+		List<Apple> inventory = Arrays.asList(new Apple(80,"green"), new Apple(155, "green"), new Apple(120, "red"));
 
 		// [Apple{color='green', weight=80}, Apple{color='green', weight=155}]
 		List<Apple> greenApples = filterApplesByColor(inventory, "green");
diff --git a/src/main/java/lambdasinaction/chap3/README.md b/src/main/java/lambdasinaction/chap3/README.md
new file mode 100644
index 00000000..fc15991e
--- /dev/null
+++ b/src/main/java/lambdasinaction/chap3/README.md
@@ -0,0 +1,6 @@
+# 
+
+自定义接口作为参数
+
+Comsumer
+Functions
diff --git a/src/main/java/lambdasinaction/chap4/README.md b/src/main/java/lambdasinaction/chap4/README.md
new file mode 100644
index 00000000..ce2b258c
--- /dev/null
+++ b/src/main/java/lambdasinaction/chap4/README.md
@@ -0,0 +1,11 @@
+# 
+
+List to Stream
+
+Stream的操作
+filter
+sort
+collect
+map
+forEach
+