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
Taking Notes with Monumentum

Pre-Java 9 garbage collection

Java's garbage collection is not new to Java 9, it has existed since the initial release of Java. Java has long had a sophisticated garbage collection system that is automatic and runs in the background. By running in the background, we are referring to garbage collection processes running during idle times.


Idle times refer to the time in between input/output such as between keyboard input, mouse clicks, and output generation.

This automatic garbage collection has been one of the key factors in developers selecting Java for their programming solutions. Other programming languages such as C# and Objective-C have implemented garbage collection following the success of the Java platform.

Let's next take a look at the following listed concepts before we look at the changes to garbage collection in the Java 9 platform:

  • Visualizing garbage collection
  • Garbage collection upgrades in Java 8
  • Case study - Games written with Java

Visualizing garbage collection

It can be helpful...