Okay I didn't see the right side my apologies, you are missing the ';' at server = then the IP
Also, like I said before, what that is doing is setting it to localhost, which should be "127.0.0.1", not any other IP address. If you just want to host it without having other people connect that is.
You don't need any .bat files for eclipse either, when you import the project into eclipse you can run the code from eclipse by clicking "Run", selecting the main type and then the code will execute. You can just delete the .bat files nobody uses them anymore honestly. Google a tutorial of how to import an RSPS into eclipse and you'll see what I mean.
Lastly, the IP address should be a String, so make it server = "127.0.0.1";