Sanity check about generics when I am trying to le...

# getting-started

[maxim]

Sanity check about generics when I am trying to learn more about them. Made some generic class like

class Generic<T>(private val value : T)

, i made 2 methods with signatures

fun <T: Number> doThing(o : Generic<T>)

and

fun doThingDiff(o : Generic<out Number>)

They behave the same when I try creating different instances of generic, I am wondering if those method signatures mean the same thing or if I am missing something. And if they are the same - which is to prefer and when?