Run command in Github with repl.it

Hello,
I have posted this before but there is no clear answer and this is really preventing me from moving forward. Thanks to those who have previously answered!

I have connected github with repl. Got everything in and continuously get some form of this message. What is a definitive “run” command for a java file!!!

This is the error now showing in the link below.
Thanks for helping!
https://repl.it/join/ekesfyss-elizabeththomas

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