package main; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import panels.MainMenu; import windows.MainFrame; public class Main { public static void main(String[] args) { try { // Set System L&F UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName()); } catch (UnsupportedLookAndFeelException e) { // handle exception } catch (ClassNotFoundException e) { // handle exception } catch (InstantiationException e) { // handle exception } catch (IllegalAccessException e) { // handle exception } new MainFrame(new MainMenu()); } }