具有ArrayList的Java FXML Tableview

Question

Hey guys I am trying to do a scorelist for a Jump&Run game for a project in university I am saving the data of a Player class with the attributes nickname and finalScore in an ArrayList . I want to show the data in a FXML TableView but it won't work and only shows no content.

I have already tried to declare the attributes as SimpleString / IntegerProperty s but it did not change.

public class ScoreController implements Initializable {

    @FXML
    private TableView<Player> table;
    @FXML
    private TableColumn<Player, String> Nickname;
    @FXML
    private TableColumn<Player, Integer> Score;

    // Creating Observable Array List
    private ObservableList<Player> data = FXCollections.observableArrayList();

    // Set up the Scene
    private Parent scoreList;

    void setUp() throws Exception{
        scoreList = FXMLLoader.load(getClass().getResource("/fxml/Score.fxml"));
        App.scoreList = new Scene(scoreList,800,500);
    }


    // Adding data to the Observable List and setting Column Factories
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        data.add(new Player("Chris", 11));
        data.add(new Player("Agil", 12));
        Nickname.setCellValueFactory(new PropertyValueFactory<Player, String>("nickname"));
        Score.setCellValueFactory(new PropertyValueFactory<Player, Integer>("finaleScore"));
        table.setItems(data);
    }
}

I expected the TableColumn to show the data of the ArrayList but the TableView only shows 'no content' in this table.

EDIT Player class

public Player(String nickname, int finalScore){
    setNickname(nickname);
    setFinalScore(finalScore);
}
public void setNickname(String nickname) {
    this.nickname = nickname;
}
void setFinalScore(int score){
    finalScore = score;
}
public String getNickname(){
    return nickname;
}
public int getFinalScore() {
    return finalScore;
}

Answer 1

You could try some changes

 Nickname.setCellValueFactory(col ->new SimpleStringProperty(col.getValue().getNickName());
 Score.setCellValueFactory(col ->new SimpleIntegerProperty(col.getValue().getFinalScore());

If its working, you have to look at the name convention for cellFactory

Answer 2

I have tried out your code and this is what I can presume to be the issue:

Score.setCellValueFactory(new PropertyValueFactory<Player, Integer>("finaleScore"));

You have mistype finalScore as finaleScore , which returns no values since such a property does not exist. However, this does not affect population of the values for column Nickname. So my second guess is that you may not have set the controller for the fxml file. Please check that in your Score.fxml code you have the line:

fx:controller="<your package name here >.ScoreController"

eg

<AnchorPane prefHeight="400.0" prefWidth="600.0" fx:controller="com.example.ScoreController">

<!-- other children nodes here  -->

</AnchorPane>

EDIT

Try changing these lines to simply be:

    @FXML
    public TableView table;
    @FXML
    public TableColumn Nickname;
    @FXML
    public TableColumn Score;