import javax.swing.*;

public class Demo {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(Demo::launchUI);
    }

    private static void launchUI() {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) {
            e.printStackTrace();
        }

        JFrame frame = new JFrame();
        JMenuItem report = new JMenuItem("Report");
		JMenuItem report1 = new JMenuItem("Report1");
        JMenu newMenu = new JMenu("New...");
        JMenu fileMenu = new JMenu("File.....");
        JMenuBar bar = new JMenuBar();

        newMenu.add(report);
		newMenu.add(report1);
        fileMenu.add(newMenu);
        bar.add(fileMenu);
        frame.setJMenuBar(bar);

        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}