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

The first step is to get the Android development environment set up. As with regular Java development, an IDE isn't strictly necessary, but it sure helps, so we'll install Android Studio, which is an IDE based on IntelliJ IDEA. If you already have IDEA installed, you can just install the Android plugin and have everything you need. For our purposes here, though, we'll assume you don't have either installed.

  1. To download Android Studio, go to, and download the package appropriate for your operating system. When you start Android Studio for the first time, you should see following screen:
  1. Before we start a new project, let's configure the Android SDKs that are available. Click on the Configure menu in the bottom-right corner, then click on SDK Manager to get this screen:

Which SDKs you select will vary depending on your needs. You may need to support older devices as far back as, say, Android 5.0, or maybe you just want to support...