import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class App extends Application {
    @Override
    public void start(Stage stage) {
        Label shortLabel = new Label("Short");
        Label longLabel = new Label("Long".repeat(42));
        Scene scene = new Scene(new VBox(shortLabel, longLabel), 1280, 720);
        stage.setScene(scene);
        stage.show();
    }
}