RxJava

RxJava is another popular library that implements the concept of reactive programming. It also provides types, such as Observable or Single, that emit values. All of these classes also provide static factories and operators.

In this section, we will cover the following:

• How to use the Flowable class
• How to use the Observable class
• How to use the Single class
• How to use the Maybe class
• How to use the Completable class

Flowable

The Flowable class was introduced in the second version of the RxJava library. This class represents a stream of events, such as Flux from Reactor.

You should consider using Flowable when you read data from a file, database, or network. The following example code shows how to create and use Flowable...