Game.java

import javax.swing.JFrame;

public class Game {

    public static void main(String[] args) {

        JFrame window = new JFrame();
        window.setTitle("State Based Game");
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        window.setContentPane(new GamePanel());

        window.setResizable(false);
        window.pack();
        window.setVisible(true);

    }

}