Learn Java or Python by programming a robot to navigate mazes.
Make sure you have Play and sbt installed. Also, install the Heroku Toolbelt.
$ git clone https://github.com/heroku/scala-getting-started.git
$ cd scala-getting-started
$ sbt compile stage
$ heroku local
Your app should now be running on localhost:5000.
$ heroku create
$ git push heroku master
$ heroku open
or
For more information about using Play and Scala on Heroku, see these Dev Center articles: