javaFX Tableview Data not visible - tableview

Question

I tried all to populate a TableView with data. The next code inserts a new row in table but the data not appear the table. I tried to find an explication for this without success.
Please help. I can't what is wrong.
In controller.java
#FXML private TableView<TempTableData> tempTable;
#FXML private TableColumn<TempTableData,String> columnTime;
#FXML private TableColumn<TempTableData,Float> columnTempOne;
#FXML private TableColumn<TempTableData,Float> columnTempTwo;
#FXML private TableColumn<TempTableData,Float> columnTempThree;
#FXML protected void initialize() {
columnTime = new TableColumn<TempTableData,String>();
columnTime.setCellValueFactory(
new PropertyValueFactory<TempTableData,String>("Time"));
columnTempOne = new TableColumn<TempTableData,Float>();
columnTempOne.setCellValueFactory(
new PropertyValueFactory<TempTableData,Float>("Temp 1"));
columnTempTwo = new TableColumn<TempTableData,Float>();
columnTempTwo.setCellValueFactory(
new PropertyValueFactory<TempTableData,Float>("Temp 2"));
columnTempThree = new TableColumn<TempTableData,Float>();
columnTempThree.setCellValueFactory(
new PropertyValueFactory<TempTableData,Float>("Temp 3"));
tempDataList = FXCollections.observableArrayList();
tempDataList.add(new TempTableData("0",3.0f, 4f, 5f));
tempTable.setItems(tempDataList);
}
TempTableData.java
public class TempTableData {
private final SimpleStringProperty time;
private final SimpleFloatProperty dataSensorOne;
private final SimpleFloatProperty dataSensorTwo;
private final SimpleFloatProperty dataSensorThree;
public TempTableData(String time, float dataSensorOne, float dataSensorTwo, float dataSensorThree){
this.time = new SimpleStringProperty(time);
this.dataSensorOne = new SimpleFloatProperty(dataSensorOne);
this.dataSensorTwo = new SimpleFloatProperty(dataSensorTwo);
this.dataSensorThree = new SimpleFloatProperty(dataSensorThree);
}
public String getTime() {
return time.get();
}
public void setTime(String time) {
this.time.set(time);
}
public float getDataSensorOne() {
return dataSensorOne.get();
}
public void setDataSensorOne(float dataSensorOne) {
this.dataSensorOne.set(dataSensorOne);
}
public float getDataSensorTwo() {
return dataSensorTwo.get();
}
public void setDataSensorTwo(float dataSensorTwo) {
this.dataSensorTwo.set(dataSensorTwo);
}
public float getDataSensorThree() {
return dataSensorThree.get();
}
public void setDataSensorThree(float dataSensorThree) {
this.dataSensorThree.set(dataSensorThree);
}
public String toString(){
String string = String.format("[time: %s | dataSensorOne: %f |dataSensorTwo: %f |dataSensorThree: %f ]",
time.get(), dataSensorOne.get(), dataSensorTwo.get(), dataSensorThree.get());
return string;
}
}

Answer 1

why you creating table columns again ? ,as they already created with #FXML annotation (injection!).
remove column instance creation lines from your code and everything will be fine
// remove these lines
columnTime = new TableColumn<TempTableData,String>();
columnTempTwo = new TableColumn<TempTableData,Float>();
columnTempThree = new TableColumn<TempTableData,Float>();

Answer 2

make sure your cell factory values are spelt exactly as the corresponding model class values.
e.g.
private final .... SimpleStringProperty time;
and
new ...... PropertyValueFactory("time"));