I also reacted that the author mixed in Python in his Java-project when Scala is a really fine alternative. Using Scala and Java he can write very short and re

I also reacted that the author mixed in Python in his Java-project when Scala is a really fine alternative. Using Scala and Java he can write very short and readable code and use Java only when there's a performance concern or a similar reason. People say Scala is complex and academic, but if you don't try to write your first Scala programs using every feature of the language you'll see it's a useful and likable language. Use it a bit like you'd use C++, pick a feature-set you understand and like and be consequent with your use of parens/lack of parens.