Creame un Login, en panel en netbeans

public void CrearLogin() {
        JPanel panel = new JPanel(new GridLayout(3, 2));

        JLabel userLabel = new JLabel("User");
        JTextField userText = new JTextField(20);
        JLabel passwordLabel = new JLabel("Password");
        JPasswordField passwordText = new JPasswordField(20);
        JButton button = new JButton("Login");
        panel.add(userLabel);
        panel.add(userText);
        panel.add(passwordLabel);
        panel.add(passwordText);
        panel.add(button);
        frame.add(panel, BorderLayout.CENTER);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);