I managed to print string values to one of my TableColumns, but long values are just not showing. I managed to find this answer but how exactly do i use ObjectProperty on my .setCellValueFactory?
Thank you in advance
The code if needed:
public class MainpageController implements Initializable {
@FXML
private Label label;
@FXML
private TableView<Customer> table1;
@FXML
private TableColumn<Customer, String> NameColumn;
@FXML
private TableColumn<Customer,Long> pnrColumn;
//Table data
final ObservableList<Customer> data = FXCollections.observableArrayList();
//final ObservableList<Customer> data2 = FXCollections.observableArrayList();
@FXML
private void addCustomer(ActionEvent event) throws IOException {
    Parent root = FXMLLoader.load(getClass().getResource("RegCustomer.fxml"));
    Scene s = new Scene(root);
    Stage stg = (Stage) ((Node) event.getSource()).getScene().getWindow();
    stg.setScene(s);
    stg.show();
}
@Override
public void initialize(URL url, ResourceBundle rb) {
    // TODO
    Customer a = new Customer("Lars", 727);
    Customer b = new Customer("Frank", 781);
    BankLogic.kunder.add(a);
    BankLogic.kunder.add(b);
    for (int i = 0; i < BankLogic.kunder.size(); i++) {
        Customer listCust = new Customer(BankLogic.kunder.get(i).getName(), BankLogic.kunder.get(i).getpNr());
        data.add(listCust);
    }
   NameColumn.setCellValueFactory(new PropertyValueFactory<Customer, String>("Name"));
   ObjectProperty<Long> longObjectProperty = new SimpleObjectProperty<Long>();
    table1.setItems(data);
    table1.getColumns().addAll(NameColumn, pnrColumn);
}
}
public class Customer {
String name;
long pNr;
public ArrayList<Object> accounts;
public Customer(String name, long pNr){
    this.name = name;
    this.pNr = pNr;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public long getpNr() {
    return pNr;
}
public void setpNr(long pNr) {
    this.pNr = pNr;
}
 
    