Create README.md for java-mvn

Author: hogimn

java-mvn/README.md

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+# Java code for RabbitMQ tutorials
+
+Here you can find the Java code examples from [RabbitMQ
+tutorials](https://www.rabbitmq.com/getstarted.html).
+
+To successfully use the examples you will need a RabbitMQ node running locally.
+
+You can easily set this up by [installing RabbitMQ](https://www.rabbitmq.com/docs/download).
+
+## Requirements
+
+### Linux
+
+- Note the source files are symbolic links to the [java](https://github.com/rabbitmq/rabbitmq-tutorials/tree/main/java) directory.
+
+### Windows
+
+- Run pull-source-files.bat to replace symbolic link to the actual source file.
+
+```shell
+./pull-source-files.bat
+```
+
+## Code
+
+#### [Tutorial one: "Hello World!"](https://www.rabbitmq.com/tutorials/tutorial-one-java.html):
+
+```shell
+# terminal tab 1
+./mvnw compile exec:java -D"exec.mainClass=Recv"
+
+# terminal tab 2
+./mvnw compile exec:java -D"exec.mainClass=Send"
+```
+
+#### [Tutorial two: Work Queues](https://www.rabbitmq.com/tutorials/tutorial-two-java.html):
+
+```shell
+# terminal tab 1
+./mvnw compile exec:java -D"exec.mainClass=Worker"
+
+# terminal tab 2
+./mvnw compile exec:java -D"exec.mainClass=Worker"
+
+# terminal tab 3
+./mvnw compile exec:java -D"exec.mainClass=NewTask" -D"exec.args='First Message'"
+./mvnw compile exec:java -D"exec.mainClass=NewTask" -D"exec.args='Second Message'"
+./mvnw compile exec:java -D"exec.mainClass=NewTask" -D"exec.args='Third Message'"
+./mvnw compile exec:java -D"exec.mainClass=NewTask" -D"exec.args='Fourth Message'"
+./mvnw compile exec:java -D"exec.mainClass=NewTask" -D"exec.args='Fifth Message'"
+```
+
+#### [Tutorial three: Publish/Subscribe](https://www.rabbitmq.com/tutorials/tutorial-three-java.html)
+
+```shell
+# terminal tab 1
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogs"
+
+# terminal tab 2
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogs"
+
+# terminal tab 3
+./mvnw compile exec:java -D"exec.mainClass=EmitLog"
+```
+
+#### [Tutorial four: Routing](https://www.rabbitmq.com/tutorials/tutorial-four-java.html)
+
+```shell
+# terminal tab 1
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsDirect" -D"exec.args=warning error"
+
+# terminal tab 2
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsDirect" -D"exec.args=info warning error"
+
+# terminal tab 3
+./mvnw compile exec:java -D"exec.mainClass=EmitLogDirect" -D"exec.args=info 'Run. Run. Or it will explode'"
+./mvnw compile exec:java -D"exec.mainClass=EmitLogDirect" -D"exec.args=warning 'Run. Run. Or it will explode'"
+./mvnw compile exec:java -D"exec.mainClass=EmitLogDirect" -D"exec.args=error 'Run. Run. Or it will explode'"
+```
+
+#### [Tutorial five: Topics](https://www.rabbitmq.com/tutorials/tutorial-five-java.html)
+
+```shell
+# terminal tab 1
+# To receive all the logs:
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsTopic" -D"exec.args=#"
+
+# To receive all logs from the facility "kern":
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsTopic" -D"exec.args=kern.*"
+
+# Or if you want to hear only about "critical" logs:
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsTopic" -D"exec.args=*.critical"
+
+# You can create multiple bindings:
+./mvnw compile exec:java -D"exec.mainClass=ReceiveLogsTopic" -D"exec.args=kern.* *.critical"
+
+# terminal tab 2
+# And to emit a log with a routing key "kern.critical" type:
+./mvnw compile exec:java -D"exec.mainClass=EmitLogTopic" -D"exec.args=kern.critical A critical kernel error"
+```
+
+#### [Tutorial six: RPC](https://www.rabbitmq.com/tutorials/tutorial-six-java.html)
+
+```shell
+# terminal tab 1
+# Our RPC service is now ready. We can start the server:
+./mvnw compile exec:java -D"exec.mainClass=RPCServer"
+
+# terminal tab 2
+# To request a fibonacci number run the client:
+./mvnw compile exec:java -D"exec.mainClass=RPCClient"
+```
+
+#### [Tutorial seven: Publisher Confirms](https://www.rabbitmq.com/tutorials/tutorial-seven-java.html)
+
+```shell
+# terminal tab 1
+./mvnw compile exec:java -D"exec.mainClass=PublisherConfirms"
+```

java-mvn/pull-source-files.bat

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+copy ..\java\*.java src\main\java\