Various short Scala apps to play with Scala.
To make it work install Scala and Sbt (using macports) ...
sudo port install scala sudo port install sbt
... and run then run sbt ...
sbt clean compile run
... and select to run HelloWorld (normally [5]).
To run the examples that need arguments you need to start/run sbt and at the prompt need to type run followed by the parameters, e.g. to run Fib ...
run 10
... and select Fib.