MyProgram.java

import java.awt.event.ActionEvent;
import java.io.File;
import javax.sound.midi.MidiUnavailableException;
import javax.swing.*;

public class MyProgram {
    public static void main(String[] args) throws java.io.IOException, java.net.URISyntaxException, java.net.MalformedURLException, MidiUnavailableException {
        Load.Load();

        //creating instance of JFrame
        JFrame window = new JFrame();
        window.setSize(640, 320);
        window.setLocation(0, 20);
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        window.setResizable(false);

        Input input = new Input();
        window.addKeyListener(input);

        window.setVisible(true);
        Renderer renderer = new Renderer(640, 320);
        window.add(renderer);
        window.pack();

        JFileChooser chooser = new JFileChooser();
        chooser.setCurrentDirectory(new File("."));
        int result = chooser.showOpenDialog(null);
        File file;

        if (result == JFileChooser.APPROVE_OPTION) {
            file = chooser.getSelectedFile();
        }

        else {
            return;
        }

        Processor processor = new Processor(file, renderer, input);

        Timer screenTimer = new Timer(33, (ActionEvent e) -> {
            
            window.repaint();
        });
        screenTimer.setRepeats(true);
        screenTimer.start();

        Timer procTimer = new Timer(1, (ActionEvent e) -> {
            processor.tick();
            input.updateOld();
        });
        procTimer.setRepeats(true);
        procTimer.start();

        Timer timerTimer = new Timer(1, (ActionEvent e) -> {
            processor.timerTick();
        });
        timerTimer.setRepeats(true);
        timerTimer.start();
    }
}