A simple java program.

A simple java program that allows a user to create a graph by entering nodes and the edges between them. The program then needs to compute a list of prime path coverage test requirements based on the user input. I have attached examples of prime path coverage which will hopefully make things more clear for you. I would like to request that the program is very simple and is based on classes, ideally, for example, a class for the nodes and edges and the actual prime path computation. Feel free to ask any questions if you need further explanation. May you also provide comments beside the code explaining everything in detail so that I can comprehend it.