import javafx.application.Application;
import javafx.geometry.NodeOrientation;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.scene.control.ChoiceBox;

public class ChoiceBoxSample extends Application {

    private void init(Stage primaryStage) {
        Group root = new Group();
        primaryStage.setResizable(false);
        primaryStage.setScene(new Scene(root, 150, 100));
        primaryStage.getScene().setNodeOrientation(NodeOrientation.RIGHT_TO_LEFT);
        ChoiceBox cb = new ChoiceBox();
        cb.getItems().addAll("Dog", "Horse", "Cat", "Monkey", "Rabbit");
        cb.getSelectionModel().select("Horse");
        root.getChildren().add(cb);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        init(primaryStage);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}