Put XAxis value on top of bar chart with diagonally in javafx - javafx

Question

I have created a bar chart with multi series as you can see at the picture.
The List ent has 2 Lists.
I need to somehow write their xAxis value on top of their body diagonally (with a rotation of 45 degree). And set another value for xAxis later.
public class FunctionalRedundantController {
#FXML
private BarChart<String, Number> barchart;
#FXML
private CategoryAxis funcNameAxis;
#FXML
private NumberAxis yAxis;
private ObservableList<String> funcNames = FXCollections
.observableArrayList();
private DataConstructor dc = new DataConstructor();
#FXML
private void initialize() {
funcNameAxis.setLabel("Name of Functions");
funcNameAxis.tickLabelFontProperty().set(Font.font(10));
yAxis.setLabel("Redundant");
}
public void setfunctionalredundant() {
XYChart.Series<String, Number> series = new XYChart.Series<>();
XYChart.Series<String, Number> series2 = new XYChart.Series<>();
int green = 0;
int yellow = 0;
List<String> compGreen = new ArrayList<String>();
List<String> compyellow = new ArrayList<String>();
for (List<String> ent : dc.getFuncTypeOrg().values()) {
if (ent.size() > 10) {
for (int k = 0; k < ent.size(); k++) {
if (ent.get(k).equals("hasType")) {
if (ent.get(k+1).equals("Green")) {
series.getData().add(
new XYChart.Data<String, Number>(ent.get(k-2), 1));
}
else if(ent.get(k+1).equals("yellow")){
series2.getData().add(
new XYChart.Data<String, Number>(ent.get(k-2), 1));
}
}
}
}
}
barchart.getYAxis().setVisible(false);
barchart.getYAxis().setOpacity(0);
barchart.getData().addAll(series, series2);
barchart.setBarGap(1);
barchart.setCategoryGap(20);
}
}