For this assignment, you are required to develop a Windowed GUI Java Program to demonstrate
you can use Java constructs including input/output via a GUI interface, Java primitive and built-in
types, Java defined objects, arrays, selection and looping statements and various other Java
commands. Your program must produce the correct results.
The code for the GUI interface is supplied and is available on the unit website, you must write the
underlying code to implement the program. The command buttons are linked to appropriate methods
in the given code. Please spend a bit of time looking at the given code to familiarise yourself with it
and where you have to complete the code. You will need to write comments in the supplied code as
well as your own additions.