/** @param args */ public static void main(String[] args) { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception e) { } Main main = new Main(); main.addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent evt) { System.exit(0); } }); main.pack(); UIUtil.positionComponent(SwingConstants.CENTER, main); main.setVisible(true); }