This times 1000. I have been using Scala for the past 3 months in a play framework app that serves json. Today I had to write some quick Java for an Android client, and was quickly reminded how much freedom Scala's expressiveness gives you vs Java old cruft.

I mistakenly wrote a Java anonymous inner class that called a closed over variable from the outer scope like one would do with Scala closures. Of course the Java compiler threw an error because I didn't mark the variable as final.

When programing in Scala, one never has to deal with such low level rigidness. It just let's you get shit done.