Simple GUI to Track Earnings need Funcationality Added

I'm looking for creation of the following: I have already created the gui layout using NetBeans, need functionality added to a couple of buttons Need the following + Two Dimensional Array Created Functionality added for the following: + Enter button to input data into Two Dimensional Array + Enter button to display input in a text area when pressed + Report button (nested for-loop) to display total and average in a text area from data in the array Thats it.