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

Concurrency in Scala

Scala is a general purpose multi-paradigm programming language that includes characteristics of object-oriented and functional programming. Its code is compiled to Java byte code. It provides Java interoperability, so you can use elements of Java (including the Java Concurrency API) in Scala code and libraries written in Scala in Java programs.

As we mentioned with Clojure and Groovy, the main purpose of this section is not to provide an introduction to the Scala programming language and its installation and configuration. You can download the tools to work in Scala from You can install a plug-in to get support for Scala in your IDE. Eclipse, for example, has the Scala IDE plug-in that you can install via the Eclipse Marketplace.

The Scala concurrency model is based on Futures and Promises. A future stores a value that doesn't exist yet and will be calculated by an asynchronous task that will be executed by another thread. A Future uses a non...