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

Building the graphical user interface

For our GUI, we'd like to expose the same type of functionality as the command line, but, obviously, with a nice graphical interface. For this, we'll again reach for JavaFX. We'll give the user a means to select, using a chooser dialog, the directories to be searched, and a field by which to add the search patterns. Once the duplicates have been identified, we will display them in a list for the user to peruse. All of the duplicate groups will be listed and, when clicked, the files in that group will be displayed in another list. The user can right-click on the list and choose to either view the file (or files) or delete it (or them). When we are finished, the application will look like this:

Let's start by creating our project. In NetBeans, go to File | New Project and select Maven | JavaFX Application. You can name it whatever you'd like, but we've used the name Duplicate Finder - GUI, groupId as com.steeplesoft.dupefind, and artifactId as gui.