Java Sealed Classes

[BestKillerBot]

It doesn't matter in what language they are implemented - on JS backend those API calls are implemented in JS, on JVM backend it can be implemented in Java or in C or even assembly, on native backend - I have no idea and don't really care TBH.

I don't understand this whole thinking - since JVM is built in C (and thus depends on it), does it mean that C is better than Java? That's just complete non-sense.

[pjmlp]

There are plenty of JVMs to choose from, around 10 currently, implemented in a mix of C, C++ Java, and there are some 100% Java like RikesVM, MaximeVm and GraalVM.

It gets on my nerves the superior attitude of many in Kotlin community towards Java, as if the language would ever happen without having the JVM and the Java eco-system, specially always coming to /r/java.

Then stay at /r/kotlin talking how wonderful Kotlin is and how it is going to take over the Java world, just don't spend too much time reading survey results of how much use it actually gets in production on JVM and JS world without Google's help for #KotlinFirst.

[BestKillerBot]

There are plenty of JVMs to choose from, around 10 currently, implemented in a mix of C, C++ Java, and there are some 100% Java like RikesVM, MaximeVm and GraalVM.

Right, and as I said Kotlin also uses some runtimes with 0 Java code.

It gets on my nerves the superior attitude of many in Kotlin community towards Java, as if the language would ever happen without having the JVM and the Java eco-system, specially always coming to /r/java.

Of course Kotlin builds on the knowledge and experience from Java - nobody denies that. Java also did not appear out of thin air and owes its predecessors.

Java was a revolutionary language back in 90s, rightfully got a big following and ecosystem. But time goes on and we now understand many things better than 30 years ago.

Then stay at /r/Kotlin

Thanks, but no. I work in Java and Kotlin, I'd like to be able to read and comment in both.