Book Image

Mastering Concurrency Programming with Java 9 - Second Edition

By : Javier Fernández González
Book Image

Mastering Concurrency Programming with Java 9 - Second Edition

By: Javier Fernández González

Overview of this book

Concurrency programming allows several large tasks to be divided into smaller sub-tasks, which are further processed as individual tasks that run in parallel. Java 9 includes a comprehensive API with lots of ready-to-use components for easily implementing powerful concurrency applications, but with high flexibility so you can adapt these components to your needs. The book starts with a full description of the design principles of concurrent applications and explains how to parallelize a sequential algorithm. You will then be introduced to Threads and Runnables, which are an integral part of Java 9's concurrency API. You will see how to use all the components of the Java concurrency API, from the basics to the most advanced techniques, and will implement them in powerful real-world concurrency applications. The book ends with a detailed description of the tools and techniques you can use to test a concurrent Java application, along with a brief insight into other concurrency mechanisms in JVM.
Table of Contents (21 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Software transactional memory

Software transactional memory is a mechanism that provides programmers transactional semantic for accessing data in memory. In this section, you will learn how to apply these elements in Groovy. Take into account that we don't make an introduction to the Groovy programming language. You can find a lot of tutorials about the Groovy programming language on the internet. The main page about GPars is You can download the library and find documentation about how to use them. As we mentioned before, you also can use this library in the Java programming language.

Using Java elements

Groovy is a programming language that generates byte codes for the JVM. You can use all the elements of the Java programming language in a Groovy program, including all those elements related with concurrency.

For example, in the following example you're going to create a Thread. First, declare a Groovy class named Example1 with a main() method:

class Example1 {