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Preparation

Install Java 10 on Ubuntu

sudo add-apt-repository ppa:linuxuprising/java
sudo apt-get update
sudo apt-get install oracle-java10-installer

Install Java 10 on Windows

Download the installer from the Oracle website.

Compile with Maven

export JAVA_HOME=/path/to/jdk-10
mvn clean compile

Exercises

The exercises in this project guide you through the high-impact Local-Variable Type Inference language feature of Java 10, and a useful but currently incubating HTTP Client API addition that is to be standardized in Java 11.

Local-Variable Type Inference

The localvar module should help you get familiar with the possibilities and constraints of Local-Variable Type Inference. The LocalVar class contains an extensive overview of example scenarios in which the var declaration may or may not be used. Try to think of which ones will compile (when uncommented), and which ones will not. Did you get them all correct?

HTTP Client

The httpclient-demo module should get you started on using the Java HTTP Client. Both "plain" HTTP and WebSockets are touched.

Plain HTTP

The plain HTTP exercises consist of four different classes which demonstrate different aspects of the HTTP Client API, such as HTTP/2 support, response code handling and Flow API Subscriber integration. For your convenience, unit tests are provided to check your implementation. Try not to cheat! To run these tests:

mvn clean verify

WebSockets

In the WebSocketChatExercise you will find yourself implementing a chat client using WebSockets with the Java HTTP Client. If all goes well, you should be able to chat with your fellow participants! Try to not only follow the instructions, but use the exercise to learn more about the HTTP Client API.