How to open an executable jar file (java)

Описание

The quality vid you've all been waiting for!
Jokes aside, some people kept having troubles opening opsu!(d), and I couldn't find a no-bullshit video, so I made one....

Play this video while watching it: https://www.youtube.com/watch?v=2WPCLda_erI (be sure to rate 5 stars)

Enable annotations for additional help (can you believe youtube will remove the ability to add annotations on May 1st?).