main

public class App {

    public static void main(String[] args) {
        EmployeeDatabase employeeDatabase = new EmployeeDatabase();
        SwingUtilities.invokeLater(() -> {
            StartWindowGUI gui = new StartWindowGUI(employeeDatabase);
            JFrame frame = new JFrame();
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.getContentPane().add(gui);
            frame.pack();
            frame.setVisible(true);
        });
    }
}