ds.setURL(jdbcUrl);if(conn == null) {
            // Display a message to get the password from the user
            JLabel label = new JLabel("Oracle Username: ");
            JTextField jtf = new JTextField();
            JLabel label2 = new JLabel("Oracle Password:");
            JPasswordField jpf = new JPasswordField();
            JOptionPane.showConfirmDialog(null,new Object[]{label, jtf, label2, jpf}, "Password:",
            JOptionPane.OK_CANCEL_OPTION);
            String password = String.valueOf(jpf.getPassword());
    conn = ds.getConnection(jtf.getText(), password );
        }