Using Lejos to program an FTC style robot

[Jalerre]

My mentor has tasked me along with a few other students to build an FTC style robot (tetrix build kit with an NXT brain) to show off to students in the area for recruiting. We no longer have an FTC team but we think its something simple that will spark people's interests in robotics without having to lug our FRC bot around. The only problem is that we no longer have an active RobotC license and our mentor doesn't think its worth it to purchase one and wants us to think outside of the box and challenge ourselves. I have decided to use the Lejos NXJ library for Java because it seems to suit our purposes and I think it will be good practice for myself and some newer members for this upcoming season. It seems simple enough to write an autonomous program but I was wondering if anybody could give me some help with writing a program for driver control using a joystick controller (Logitech F310 Gamepad) through bluetooth. Any help would be greatly appreciated even if its just about using Lejos in general and other helpful tips.

TL;DR: I need help to write a Lejos NXJ program using a joystick controller through bluetooth.