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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
9
Taking Notes with Monumentum

Chapter 7. 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 head...