Internationalization in JavaFX – Loading Resource Bundle

JavaFX provides an easy way to internationalize your user interfaces. While creating a view from an FXML file you can provide the FXMLLoader with a resource bundle:

Locale locale = new Locale("en", "UK");
ResourceBundle bundle = ResourceBundle.getBundle("strings", locale);

Parent root = FXMLLoader.load(getClass().getClassLoader()
                                  .getResource("ui/main.fxml"), bundle);

This provided bundle is automatically used to translate all texts in your FXML file that start with a %.
Lets say your properties file contains the following line:

ui.button.text=I'm a Button

If you have a button definition in your FXML like this:

<Button text="%ui.button.text"/>

It will automatically receive the translation for the key ui.button.text.

if you want to reproduce, please indicate the source:
Internationalization in JavaFX – Loading Resource Bundle - CodeDay