Typecasting TableView parameterized input JavaFX

Question

So I am creating a simple GUI/Database application using JavaFX. It seems really powerful tool.

The problem is with TableView because whenever I create one, It should be of only one type. I've tried multiple different ways to solve the problem but never works, here's some more details :

    public class SecretaryController implements Initializable {

    @Override
    public void initialize(URL url, ResourceBundle resourceBundle) {
    }

    @FXML
    private TableView<?> tableView;

    @FXML
    private TextField txtSearchCustomerId;

    @FXML
    private Button viewctbtn;

    @FXML
    void viewCustomerById(ActionEvent event) {

        tableview = new TableView<Customer>;

        SecretaryModel secretaryModel = new SecretaryModel();

        TableColumn col_id = new TableColumn("Id");
        TableColumn col_fname = new TableColumn("fname");
        TableColumn col_lname = new TableColumn("lname");
        TableColumn col_address = new TableColumn("Id");
        TableColumn col_age = new TableColumn("age");
        TableColumn col_email = new TableColumn("email");
        TableColumn col_password = new TableColumn("password");
        TableColumn col_isPremium = new TableColumn("ispremium");

        tableView.getColumns().addAll(col_id, col_fname, col_lname, col_address, col_age, col_email, col_password, col_isPremium);

        try {

            col_id.setCellValueFactory(new PropertyValueFactory<Customer, Integer>("id"));
            col_fname.setCellValueFactory(new PropertyValueFactory<Customer, String>("fname"));
            col_lname.setCellValueFactory(new PropertyValueFactory<Customer, String>("lname"));
            col_address.setCellValueFactory(new PropertyValueFactory<Customer, String>("address"));
            col_age.setCellValueFactory(new PropertyValueFactory<Customer, String>("age"));
            col_email.setCellValueFactory(new PropertyValueFactory<Customer, String>("email"));
            col_password.setCellValueFactory(new PropertyValueFactory<Customer, String>("password"));
            col_isPremium.setCellValueFactory(new PropertyValueFactory<Customer, String>("ispremium"));
        } catch (Exception e) {
            e.printStackTrace();
        }

        ObservableList<Customer> customerObservableList = secretaryModel.getDataCustomers(Integer.parseInt(txtSearchCustomerId.getText()));

        tableView.setItems(customerObservableList);

    }

It's giving me this error: java: incompatible types: javafx.collections.ObservableList<com.example.taxiandrentapp.Customer> cannot be converted to javafx.collections.ObservableList<capture#1 of ?>

I would like to declare a TableView that can take any parameterized input , and whenever I press on view customer it associate the table view with customer class , and whenever I press on different button , it associate it to a different class.

If this can't be done , any proposed approach will be helpful .