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:

Flowable.fromIterable(listOf(1, 2, 3))
        .subscribe { println(it) }

This shows how to create an instance of the Flowable class that emits values.