Why every class in kotlin by default "final"?

# announcements

[Bikram]

Why every class in kotlin by default "final"?

[fengdai]

Effective Java Item 17: Design and document for inheritance or else prohibit it.

[magnumrocha]

https://discuss.kotlinlang.org/t/classes-final-by-default/166

[magnumrocha]

only open when it really needed 😉

[Stephan Schroeder]

You could ask yourself: Why every class in java by default “open”? (The answer is, as Feng Dai pointed out, that Kotlin picks the safer option as a default.)

[magnumrocha]

☝️ yeah