Learning Goal: I’m working on a java question and need an explanation and answer

Learning Goal: I’m working on a java question and need an explanation and answer to help me learn.this is for the monty hall problem. I need the code in JAVA programming language please. It doesn’t have to be all that complicated. I want it simple but I want it to have the 3 classes like it says in the attached document thank you.
Requirements: as long as it needs to be