import javax.swing.JFrame; import javax.swing.UIManager; public class Main { public static void main(String[] args) { try { UIManager.setLookAndFeel( UIManager.getCrossPlatformLookAndFeelClassName()); } catch (Exception e) { System.out.println(e); } ConfigFrame frame = new ConfigFrame(); frame.setTitle("Schroedinger Simulation Setup"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } }