I used to think that same thing I recently found a very smart fellow who has been writing translations of a small Scala "expression interpreter" with monads an

I used to think that same thing I recently found a very smart fellow who has been writing translations of a small Scala "expression interpreter" with monads and what. But in Java. I kid you not. He wrote it in JDK 8 Java (pretty far from Scala) Then updated with JDK 15 features Java (getting closer) I made a rough pass at JDK17 Java using records and ADTs (sealed types) with pattern match "switch" and the net result is an almost verbatim translation. https://github.com/Randgalt/expressive-java/issues/1 https://github.com/Randgalt/expressive-java/issues/1 There is one ugly line which JDK18 will fix, "destructuring in pattern captures/match". See "Deconstruction Patterns" at bottom of page here: https://openjdk.java.net/jeps/405 https://openjdk.java.net/jeps/405