As the Project states, it is to be written in Java EE SDK, not the netbeans eddition.
As the project has stated it will be a simple command line spreadsheet. The code variables are to be self explenatory, meaning that you can figure out what they are by reading them. The code is also to be commented stating what the major (important) parts do. The emphasis of this project is simplicity. It is to be written in a manner that anyone could understand it by going threw the code. This will be explained more in the files I will provide you of how it is to look like and also some additional information. Please do free to ask any questions.