What is the difference between asynchronous and reactive?

Question

Java

So, there is spring5 and projectreactor and it is reactive
And there are coroutines in Kotlin - and they are asynchronous Can
you please explain to me what is the difference?

Answer 1

Asynchrony is a kind of concurrent execution, while reactivity is a kind of architectural approach. These concepts are not related and not mutually exclusive, reactive code may or may not be asynchronous, asynchronous code may or may not be reactive.

Answer 2

I'll add this explanation - the reactive approach often uses asynchrony. They cannot be compared, they are different concepts.