Book Image

Java 9: Building Robust Modular Applications

By : Dr. Edward Lavieri, Peter Verhas, Jason Lee
Book Image

Java 9: Building Robust Modular Applications

By: Dr. Edward Lavieri, Peter Verhas, Jason Lee

Overview of this book

Java 9 and its new features add to the richness of the language; Java is one of the languages most used by developers to build robust software applications. Java 9 comes with a special emphasis on modularity with its integration with Jigsaw. This course is your one-stop guide to mastering the language. You'll be provided with an overview and explanation of the new features introduced in Java 9 and the importance of the new APIs and enhancements. Some new features of Java 9 are ground-breaking; if you are an experienced programmer, you will be able to make your enterprise applications leaner by learning these new features. You'll be provided with practical guidance in applying your newly acquired knowledge of Java 9 and further information on future developments of the Java platform. This course will improve your productivity, making your applications faster. Next, you'll go on to implement everything you've learned by building 10 cool projects. You will learn to build an email filter that separates spam messages from all your inboxes, a social media aggregator app that will help you efficiently track various feeds, and a microservice for a client/server note application, to name just a few. By the end of this course, you will be well acquainted with Java 9 features and able to build your own applications and projects. This Learning Path contains the best content from the following two recently published Packt products: • Mastering Java 9 • Java 9 Programming Blueprints
Table of Contents (33 chapters)
Title Page - Courses
Packt Upsell - Courses
Preface
25
Taking Notes with Monumentum
Bibliography
Index

Useful tools


The first thing you will need to do before migrating your applications to Java 9 is to download JDK 9. You can download the early access builds at this URL--http://jdk.java.net/9/. You will need to accept the license agreement and then select which build to download. As you can see in the following screenshot, there are several options based on your operating system:

Now that you have JDK 9 installed on your development computer, let's look at a couple of tools that can help facilitate migrating your applications to Java 9.

Java environment - jEnv

If you develop on a computer with Linux or macOS, you might consider using jEnv, an open source Java environment management tool. This is a command-line tool, so do not expect a GUI. You can download the tool at this URL--https://github.com/gcuisinier/jenv.

Here is the installation command for Linux:

$ git clone https://github.com/gcuisinier/jenv.git ~/.jenv

To download using macOS with Homebrew, use this command:

$ brew install jenv

You can...