I return two String values ​​but how do I access the data of a table in mysql?

Good afternoon. I am validating a user if it exists but I need you to show your role and ID, thank you. (MVC).

public String[] validaUser(String user, String pass) {

        String sql = "SELECT \n"
                + "u.user,\n"
                + "u.password,\n"
                + "r.rol,\n"
                + "p.cedula,\n"
                + "p.nom_nom,\n"
                + "p.nom_ape\n"
                + "from users as u \n"
                + "INNER JOIN roles as r\n"
                + " ON r.id = u.id_rol\n"
                + "INNER JOIN personal as p\n"
                + " ON p.id = u.id_personal\n"
                + "WHERE u.user = ? AND u.password = ?";

        try {

            cn = con.getConection();
            ps = cn.prepareStatement(sql);
            ps.setString(1, user);
            ps.setString(2, pass);
            rs = ps.executeQuery();

            if (!rs.next()) {

                JOptionPane.showMessageDialog(null, "Usuario y/o Contraseña invalida.");
                return null;
            } else {
                String[] cedulaRol = {rs.getString("rol"), rs.getString("cedula")};
                return cedulaRol;
                /*return rs.getString("rol");*/
            }

        } catch (HeadlessException | SQLException e) {
            System.err.println("Error al traer los datos de los usuario modelo:" + e);
        }
        return null;
    }

And here it validates if it is a teacher or an administrator but I need it to show: "Welcome: "+rol+cedula , I don't know if I am making a mistake in the database but I have reviewed it and it looks good.

private void 

txtIngresarActionPerformed(java.awt.event.ActionEvent evt) {  

        mUsuarios datos = new mUsuarios();

        String[] rol = {"rol", "cedula"};

        rol = datos.validaUser(txtLogin.getText(), txtPassword.getText());
        /*rol = datos.validaUser(txtLogin.getText(), txtPassword.getText());
        user = datos.validaUser(txtLogin.getText(), txtPassword.getText());*/

        if (rol.equals("ADMINISTRADOR")) {
            JOptionPane.showMessageDialog(null, "Bienvenido: " + rol);
            vAdmin form = new vAdmin();
            form.setVisible(true);
            this.dispose();
        } else if (rol.equals("DOCENTE")) {
            JOptionPane.showMessageDialog(null, "Bienvenido: " + rol);
            vDocente form = new vDocente();
            form.setVisible(true);
            this.dispose();
        } else {
            JOptionPane.showMessageDialog(null, "No existen datos");
            txtLogin.setText("");
            txtPassword.setText("");
            txtLogin.requestFocus();
        }

    }