JavaFx; Label Center depend on width - javafx

Question

i have Pane and Label on it.
How to set layoutXProperty of Label so that it would be in Center on X line?
I think i should use formula like this: (Pane.width-Label.width)/2
But i don't know how it write right. And i have not found answer in google.
Can some one hint me?
thxs.
Upd. Text of the Label i update after if declaration, and it text can be different length. So i want to set layoutXProperty to it depend on length of text and would be on CENTER.
UPD: code inserted
public void start(Stage myStage) throws FileNotFoundException {
myStage.setTitle("OrthographyChecker");
Pane pane = new Pane();
Scene scene = new Scene(pane, 700, 300);
Label labelUp = new Label();
labelUp.setFont(new Font(fontSize));
labelUp.layoutXProperty().bind(pane.widthProperty().subtract(labelUp.widthProperty()).divide(2));
labelUp.layoutYProperty().bind(pane.heightProperty().subtract(labelUp.heightProperty()).divide(5));
labelUp.setText("Click to start");
pane.getChildren().addAll(labelUp);
TextField inputTxt = new TextField("");
inputTxt.setVisible(false);
inputTxt.layoutXProperty().bind(pane.widthProperty().subtract(inputTxt.widthProperty()).divide(2));
inputTxt.layoutYProperty().bind(labelUp.layoutYProperty().add(35));
pane.getChildren().addAll(inputTxt);
Label chkL = new Label("");
chkL.setFont(new Font(fontSize));
chkL.layoutYProperty().bind(inputTxt.layoutYProperty().add(30));
chkL.layoutXProperty().bind(pane.widthProperty().subtract(chkL.widthProperty()).divide(2));
chkL.setStyle("-fx-border-color: blue;");
pane.getChildren().addAll(chkL);
inputTxt.setOnKeyPressed(event -> {
if (event.getCode().equals(KeyCode.ENTER)) {
try {
for (String OneWrd : chkWrd[0].replace(", ", ",").split(",")) {
if (inputTxt.getText().equalsIgnoreCase(OneWrd)) {
chkL.setText("You are right!");
chkL.setVisible(true);
notfound[0] = false;
break;
}
}
if (notfound[0]){
chkL.setText("Wrong! Right answer: \"" + chkWrd[0] + "\"");
chkL.setVisible(true);
}
} catch (Exception e) {
errPrint(e, "Установки ожидания ");
}
inputTxt.setText("");
pause[0] = false;
notfound[0] = true;
chkL.layoutXProperty().bind(pane.widthProperty().subtract(labelUp.widthProperty()).divide(2));
}
});
myStage.setScene(scene);
myStage.show();
}
It part of code, which use it trouble label (variable chkL). As you can see, i have binded it to center, like another Label. But this label changes alingment after first iteration of change text of label, and starts to looks like that screen (label in border)
and i am trying to solve exact it proplem. Binds works, but not like i am expecting

Answer 1

The correct way to center a label is to use a layout pane and configure the pane and/or label so that it is centered. For example, if you wanted the label horizontally centered at the top of the layout (or a region of the layout), you might use a BorderPane as follows:
<BorderPane>
<top>
<Label alignment="CENTER" text="A Label" fx:id="myLabel">
<maxWidth><Double fx:constant="POSITIVE_INFINITY"/></maxWidth>
</Label>
</top>
<center>
<!-- other content ... -->
</center>
<!-- other BorderPane regions as required -->
</BorderPane>
All of the settings here can be made using Scene Builder, if you choose to use it.