Learning RxJava

A quick exposure to RxJava

 Before we dive deep into the reactive world of RxJava, here is a quick exposure to get your feet wet first. In ReactiveX, the core type you will work with is the Observable. We will be learning more about the Observable throughout the rest of this book. But essentially, an Observable pushes things. A given Observable<T>pushes things of type T through a series of operators until it arrives at an Observer that consumes the items. For instance, create a new Launcher.java file in your project and put in the following code:

import io.reactivex.Observable;public class Launcher {      public static void main(String[] args) {        Observable<String> myStrings =          Observable.just("Alpha", "Beta", "Gamma", "Delta", "Epsilon");      }}