aa.java

import javax.swing.*;

public class aa {
    public static ab f;
    public static int width = 800;
    public static int height = 600;

    public static void main(String[] args) {
        f = new ab();
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setResizable(false);
        f.setSize(width, height);
        f.setTitle("2D Platform Game");
        f.setLocationRelativeTo(null);

    }
}