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

New features in Java 9


As with any new version of the JDK, this release was packed with a lot of great new features. Of course, what is most appealing will vary based on your needs, but we'll focus specifically on a handful of these new features that are most relevant to the projects we'll build together. First up is the most significant, the Java Module System.

Java Platform Module System/Project Jigsaw

Despite being a solid, feature-packed release, Java 8 was considered by a fair number to be a bit disappointing. It lacked the much anticipated Java Platform Module System (JPMS), also known more colloquially, though not quite accurately, as Project Jigsaw. The Java Platform Module System was originally slated to ship with Java 7 in 2011, but it was deferred to Java 8 due to some lingering technical concerns. Project Jigsaw was started not only to finish the module system, but also to modularize the JDK itself, which would help Java SE scale down to smaller devices, such as mobile phones and...