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

Chapter 23. Email and Spam Management with MailFilter

In computer science, we have a number of laws, the most famous of which is, perhaps, Moore's Law, which addresses the rate at which the computer processing power increases. Another law, although not as well known, and certainly not as serious, is one known as Zawinski's Law. Jamie Zawinski, best known for his role at Netscape and Mozilla, once noted that "Every program attempts to expand until it can read mail. Those programs which cannot so expand are replaced by ones which can." While Zawinski's Law hasn't been quite as accurate as Moore's Law, there does seem to be a ring of truth to it, doesn't there?

In the spirit of Zawinski's Law, even if not quite the letter, we will turn our attention to email in this chapter and see if we can address something that plagues us all: email clutter. Ranging from spam to mailing list postings, those messages just keep coming, and they keep piling up.

I have several email accounts. As the head--and...