Run this code, and start type in textField, if type "-" - it's not show and not in text returns getText()
@Override
    public void start(Stage stage) throws Exception {
        StackPane root = new StackPane();
        TextField textField = new TextField();
        final Label label = new Label("Text : ");
        root.getChildren().addAll(VBoxBuilder.create().spacing(50).children(textField, label).build());
        
        textField.textProperty().addListener(new ChangeListener<String>() {

            @Override
            public void changed(ObservableValue<? extends String> ov, String t, String t1) {
                label.setText("Text : " + t1);
            }
        });
        textField.setText("1----------------2");
        Scene scene = new Scene(root, 300, 300);
        stage.setScene(scene);
        stage.setTitle(VersionInfo.getRuntimeVersion());
        stage.show();
    }