The LabJackWrapper class is a 'wrapper' class providing an alternate way to access to the LabJack.  You may find it a bit simpler and cleaner API for doing basic I/O. Not all of the labjackuw.dll functions are available, but those are still available using the LabJackJNI methods.

If you are not already familiar with the LabJack API (Windows DLL) then this class provides the simplest way to access basic LabJack functionality using Java. Here's some examples illustrating how to use the LabJackWrapper class.

AnalogInSE
AnalogInDI
AnalogOut
IoIn
IoOut
DigitalIn
DigitalOut

SPI
The LabJack also provides built-in support for controlling SPI peripherals.   The LabJackWrapper class makes it very easy to use. Here's a few examples.

I/O Expansion
D/A Converter
A/D Converter