Okay, so I'll switch my notepad++ to eclipse IDE and look up some guides on that as a start
And I unzipped all the files I downloaded into a computer file so I can view and edit them, is there a specific spot I should of put them?
And with the firewall, I followed the guide posted by "Blessthefall" so whatever that guide said to do is exactly what I did.
And lastly, I know where my JDK, and I remember seeing a guide on it, So I followed that one exactly as well.
EDIT - This is what I get after starting completely from scratch with the "Blessthefall" Guide:
https://gyazo.com/a1fd3bdf9c9f4667dca6e5b01c0a9430
and still getting the errors when I run the client after downloading everything that was recommended.
I know I'm probably missing something so simple or so stupid, I can feel it lol
But I can take gyazo's of anything you want to see, like client.java, or the ClientConstants.java or whatever if that'll help anyone. I know I'm close, I just cant figure out what's missing now.