The Observable.from methods are comparatively simpler than the Observable.create method. You can create Observable instances from nearly every Kotlin structure with the help of from methods.
So, let's take a look at this code:
fun main(args: Array<String>) { val observer: Observer<String> = object : Observer<String> { override fun onComplete() { println("All Completed") } override fun onNext(item: String) { println("Next $item") } override fun onError(e: Throwable) { println("Error ...