MyHelloToTheWorld.java

import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

public class MyHelloToTheWorld extends Application {

    @Override
    public void start(Stage primaryStage) {
        try {
            AnchorPane page = FXMLLoader.load(MyHelloToTheWorld.class
                    .getResource("FirstGui.fxml"));
            // page.setCache(true);// this would make it even worse :-(
            Scene scene = new Scene(page);
            primaryStage.setScene(scene);
            primaryStage.setTitle("A First Scenebuilder Example");
            primaryStage.setWidth(600);
            primaryStage.show();
        } catch (IOException e) {
            Logger.getLogger(MyHelloToTheWorld.class.getName()).log(
                    Level.SEVERE, null, e);
        }
    }

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