docs: run state and sequencer quickstart with java sdk

docs/en/start/sequencer/start.md

@@ -59,9 +59,13 @@ Once finished, the layotto file will be generated in the directory, run it:
 ```shell @background
 ./layotto start -c ../../configs/runtime_config.json
 ```
+
 <!-- tabs:end -->
 
 ### step 2. Run the client program and call Layotto to generate a unique id
+<!-- tabs:start -->
+#### **Go**
+Build and run the golang demo:
 
 ```shell
  cd ${project_path}/demo/sequencer/common/
@@ -86,6 +90,54 @@ Next id:next_id:10
 Demo success!
 ```
 
+#### **Java**
+
+Download java sdk and examples:
+
+```shell @if.not.exist java-sdk
+git clone https://github.com/layotto/java-sdk
+```
+
+```shell
+cd java-sdk
+```
+
+Build and run the demo:
+
+```shell
+# build example jar
+mvn -f examples-sequencer/pom.xml clean package
+# run the example
+java -jar examples-sequencer/target/examples-sequencer-1.1.0-jar-with-dependencies.jar
+```
+
+If the following information is printed, the demo is successful:
+
+```bash
+Try to get next id.Key: examples
+Next id: 1
+Try to get next id.Key: examples
+Next id: 2
+Try to get next id.Key: examples
+Next id: 3
+Try to get next id.Key: examples
+Next id: 4
+Try to get next id.Key: examples
+Next id: 5
+Try to get next id.Key: examples
+Next id: 6
+Try to get next id.Key: examples
+Next id: 7
+Try to get next id.Key: examples
+Next id: 8
+Try to get next id.Key: examples
+Next id: 9
+Try to get next id.Key: examples
+Next id: 10
+```
+
+<!-- tabs:end -->
+
 ### step 3. Stop containers and release resources
 <!-- tabs:start -->
 #### **Docker Compose**
@@ -107,9 +159,9 @@ docker rm -f etcd
 
 ### Next step
 #### What does this client program do?
-The demo client program uses the golang version SDK provided by Layotto, calls the Layotto Sequencer API, and generates a distributed unique, self-increasing id.
+The demo client program uses the SDK provided by Layotto, calls the Layotto Sequencer API, and generates a distributed unique, self-increasing id.
 
-The sdk is located in the `sdk` directory, and users can call the API provided by Layotto through the sdk.
+The golang sdk is located in the `sdk` directory, and the java sdk is in https://github.com/layotto/java-sdk
 
 In addition to using sdk, you can also interact with Layotto directly through grpc in any language you like.
 

docs/en/start/state/start.md

@@ -84,6 +84,10 @@ The layotto file will be generated in the directory, run it:
 <!-- tabs:end -->
 
 ### step 2. Run the client program, call Layotto to add, delete, modify and query
+<!-- tabs:start -->
+#### **Go**
+
+Build and run the golang demo:
 
 ```shell
 # open a new terminal tab
@@ -109,6 +113,40 @@ DeleteState succeeded.key:key1
 DeleteState succeeded.key:key2
 ```
 
+#### **Java**
+
+Download java sdk and examples:
+
+```shell @if.not.exist java-sdk
+git clone https://github.com/layotto/java-sdk
+```
+
+```shell
+cd java-sdk
+```
+
+Build and run it:
+
+```shell
+# build example jar
+mvn -f examples-state/pom.xml clean package
+# run the example
+java -jar examples-state/target/examples-state-1.1.0-jar-with-dependencies.jar
+```
+
+The demo will print the following message:
+
+```bash
+SaveState succeeded.key:key1 , value: v11
+GetState succeeded. key:key1  value:v11
+DeleteState succeeded. key:key1
+GetState after delete. key:key1  value:
+SaveBulkState succeeded. key:key1 , key2
+GetBulkState succeeded. key:key2
+```
+
+<!-- tabs:end -->
+
 ### step 3. Stop containers and release resources
 <!-- tabs:start -->
 #### **Docker Compose**

docs/zh/start/README.md

@@ -3,7 +3,7 @@
 
 在开始之前，您需要在电脑上准备以下环境：
 
-- Golang 1.14及以上
+- Golang 1.14及以上, **或者** Java 8 、Maven 3
 - Docker
 
 如果您准备好了，可以点击左侧导航栏里的各种 Demo，开始我们的旅行！

docs/zh/start/sequencer/start.md

@@ -62,9 +62,14 @@ go build -o layotto
 ```shell @background
 ./layotto start -c ../../configs/runtime_config.json
 ```
+
 <!-- tabs:end -->
 
 ### step 2. 运行客户端程序，调用Layotto生成唯一id
+<!-- tabs:start -->
+#### **Go**
+
+构建、运行 go 语言 demo:
 
 ```shell
  cd ${project_path}/demo/sequencer/common/
@@ -89,6 +94,56 @@ Next id:next_id:10
 Demo success!
 ```
 
+#### **Java**
+
+Download java sdk and examples:
+
+```shell @if.not.exist java-sdk
+git clone https://github.com/layotto/java-sdk
+```
+
+切换目录:
+
+```shell
+cd java-sdk
+```
+
+构建、运行:
+
+```shell
+# build example jar
+mvn -f examples-sequencer/pom.xml clean package
+# run the example
+java -jar examples-sequencer/target/examples-sequencer-1.1.0-jar-with-dependencies.jar
+```
+
+打印出以下信息说明运行成功:
+
+```bash
+Try to get next id.Key: examples
+Next id: 1
+Try to get next id.Key: examples
+Next id: 2
+Try to get next id.Key: examples
+Next id: 3
+Try to get next id.Key: examples
+Next id: 4
+Try to get next id.Key: examples
+Next id: 5
+Try to get next id.Key: examples
+Next id: 6
+Try to get next id.Key: examples
+Next id: 7
+Try to get next id.Key: examples
+Next id: 8
+Try to get next id.Key: examples
+Next id: 9
+Try to get next id.Key: examples
+Next id: 10
+```
+
+<!-- tabs:end -->
+
 ### step 3.销毁容器,释放资源
 <!-- tabs:start -->
 #### **关闭 Docker Compose**
@@ -110,11 +165,11 @@ docker rm -f etcd
 
 ### 下一步
 #### 这个客户端程序做了什么？
-示例客户端程序中使用了Layotto提供的golang版本sdk，调用Layotto Sequencer API,生成分布式唯一、自增id。
+示例客户端程序中使用了Layotto提供的多语言 sdk，调用Layotto Sequencer API,生成分布式唯一、自增id。
 
-sdk位于`sdk`目录下，用户可以通过sdk调用Layotto提供的API。
+go sdk位于`sdk`目录下，java sdk 在 https://github.com/layotto/java-sdk
 
-除了使用sdk，您也可以用任何您喜欢的语言、通过grpc直接和Layotto交互。
+除了使用sdk调用Layotto提供的API，您也可以用任何您喜欢的语言、通过grpc直接和Layotto交互。
 
 其实sdk只是对grpc很薄的封装，用sdk约等于直接用grpc调。
 

docs/zh/start/state/start.md

@@ -80,9 +80,14 @@ go build -o layotto
 ```shell @background
 ./layotto start -c ../../configs/config_redis.json
 ```
+
 <!-- tabs:end -->
 
 ### step 2. 运行客户端程序，调用Layotto进行增删改查
+<!-- tabs:start -->
+#### **Go**
+
+构建、运行 go 语言 demo:
 
 ```shell
 # open a new terminal tab
@@ -108,6 +113,42 @@ DeleteState succeeded.key:key1
 DeleteState succeeded.key:key2
 ```
 
+#### **Java**
+
+Download java sdk and examples:
+
+```shell @if.not.exist java-sdk
+git clone https://github.com/layotto/java-sdk
+```
+
+切换目录:
+
+```shell
+cd java-sdk
+```
+
+构建、运行:
+
+```shell
+# build example jar
+mvn -f examples-state/pom.xml clean package
+# run the example
+java -jar examples-state/target/examples-state-1.1.0-jar-with-dependencies.jar
+```
+
+打印出以下信息说明运行成功:
+
+```bash
+SaveState succeeded.key:key1 , value: v11
+GetState succeeded. key:key1  value:v11
+DeleteState succeeded. key:key1
+GetState after delete. key:key1  value:
+SaveBulkState succeeded. key:key1 , key2
+GetBulkState succeeded. key:key2
+```
+
+<!-- tabs:end -->
+
 ### step 3. 销毁容器，释放资源
 <!-- tabs:start -->
 #### **关闭 Docker Compose**