dumb question, is there a way to make a superclass for data classes? I'm making a "message passing" architecture where I want a superclass

Message

and subclasses are polymorphic data

Data class can inherit normal class.

i would use interfaces over superclasses for data objects unless there was a specific need

@bj0 arent interface variables

static

and

final

, thereby making them a constant? Im not sure if we can use mutable

var

inside interface.

no, why would they be static and final??

@bj0 https://stackoverflow.com/questions/1858380/variables-in-interface

that doesn't hold true for kotlin

What will be returned if i just declare a `var`in interface? Initialisation is not done yet

well you can't instantiate an interface, so any class or object that inherits the interface will have to do the initialization

Sure