Hello everyone, I am learning Kotlin and I have a question about enum vs sealed classes. Should I use sealed when my enum constants needs diffferent constructors ? Should I always use sealed classes no matter what ...

Yeah, sealed classes work well when you have different constructors for your enums (they're different types, really). 👍

😄Thank you for your feedback. For the overhead, I have no idea I did not read the generated bytecode

If you can use an enum for your situation, then I guess it's one of the “do whatever makes you feel good” situations. 😎

I can imagine, but I'm not sure about this one, that bytecode optimisation (R8) can perform better with enums than with sealed classes. Use enums when possible, but sealed classes if what you need can't be done with enums

On other hand - do you really need to care about so low optimization factors? Only few kind of apps should be aware of that. Most of the apps from the code perspective should focus on code readibility in first place.

You get an ordinal using regular enums but sealed classes are also nice together with when.

Enums go well with

when

too!

Exactly