Connections between classes

[Pan Niko]

Hello,

Im trying to build a board game called "River crossing" in Java. My idea:

Have one board class where there create the main board of the game.
Contains pocket elements

public class board extends JFrame implements ActionListener{}

public class pocket extends JButton{}

public class piece{}

Separate classes per game's levels.

public class level_1{}

There is a way to modify the board from board class depends of in what level you are?

*Any better ideas for structure, are welcomed

[Darryl Burke]

By convention, Java class names begin with an uppercase letter.

Unless you are overriding default behavior (not likely), extending JFrame and JButton is a misuse of inheritance. And event listeners are usually more conveniently programmed as anonymous inner classes instead of being implemented in a class.