https://hortonworks.com/tutorial/setting-up-a-spark-development-environment-with-java/

Comments:
1. The default root password is hadoop, please change it to secret1! (in the labs)
2. On Windows you need to download the file "winutils" and use it e.g. like described here: 
https://stackoverflow.com/questions/35652665/java-io-ioexception-could-not-locate-executable-null-bin-winutils-exe-in-the-ha
3. In the labs, instead of "sandbox-hdp.hortonworks.com" we write "localhost" in the address bar.
4.  In the menu on the left side of the tutorial you can find the versions for other languages (scala, python).
5. If you are interested in experimenting, the virtual machine should work with up to 4GB RAM. On the start it uses >2GB, if you run the program from the tutorial, it the RAM usage is roughly 3GB.