Displaying output problem

[freefall10]

Trying to output a dos command through a webpage, not sure about the steps to successfully achieve this. So far I have the code in place to output a dos command to the console screen in netbeans 6.0, but when I try and bind the output i.e. a List of strings  to a textbox or list component there is no output when the webpage loads.

I hope someone can point me in the right direction.