Java Development Tools

I was wondering if anyone could outline some steps in order to run one of my console apps from the command line. I found some documentation from Oracle on this but I don't understand it. I've never done this so I don't have a clue, as I've always run my programs within the IDE.

I would like to try though just writing the source code in the editor window, but running the program from the command line just to see what it all looks like. Does it output the results in that large black window like Visual Studio does?

I fear this is pretty complicated to set up from what I've read, but I'll try if someone can tell me how to do this.