Learning Reactive Programming with Java 8

Introducing RxJava

To write reactive programs, we need a library or a specific programming language, because building something like that ourselves is quite a difficult task. Java is not really a reactive programming language (it provides some tools like the java.util.Observable class, but they are quite limited). It is a statically typed, object-oriented language, and we write a lot of boilerplate code to accomplish simple things (POJOs, for example). But there are reactive libraries in Java that we can use. In this book, we will be using RxJava (developed by people in the Java open source community, guided by Netflix).

Downloading and setting up RxJava

You can download and build RxJava from Github (https://github.com/ReactiveX/RxJava). It requires ...