Please follow all the instructions carefully. You must implement the classes as specified in the UML diagram.
You may add other methods if needed, however, all the methods and the variables indicated in the UML diagram must be implemented.
You must submit one zip file containing the source codes (.java files) and a text document with sample outputs. All your programs must be nicely formatted and commented.
Develop the code in a step-by-step manner.
Each correctly developed code piece will get you points. The objective of this assignment is to simulate a game of tic tac toe.