Book Image

Java 9 Programming Blueprints

By : Jason Lee
Book Image

Java 9 Programming Blueprints

By: Jason Lee

Overview of this book

Java is a powerful language that has applications in a wide variety of fields. From playing games on your computer to performing banking transactions, Java is at the heart of everything. The book starts by unveiling the new features of Java 9 and quickly walks you through the building blocks that form the basis of writing applications. There are 10 comprehensive projects in the book that will showcase the various features of Java 9. 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 a few. The book covers various libraries and frameworks in these projects, and also introduces a few more frameworks that complement and extend the Java SDK. Through the course of building applications, this book will not only help you get to grips with the various features of Java 9, but will also teach you how to design and prototype professional-grade applications with performance and security considerations.
Table of Contents (19 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback
Taking Notes with Monumentum

Getting started

This application, while conceptually fairly simple, is a bit more complex than what we looked at in the last chapter, in that we will have both, a command line and a graphical interface. The experienced programmer is likely to immediately see the need to share the code between these two interfaces, as DRY (Don't Repeat Yourself) is one of the many hallmarks of a well-designed system. To facilitate this sharing of code, then, we will want to introduce a third module, which provides a library that can be consumed by the other two projects. We will call these modules lib, cli, and gui. Our first step in setting up the project is to create the various Maven POM files to describe the project's structure. The parent POM will look something like this:

    <?xml version="1.0" encoding="UTF-8"?> 
    <project xmlns="" 
      xsi:schemaLocation=" ...