Main.java

/**
*@author Ariel Carraro
*@date 3 de enero de 2013
*@description Ventana en JavaFX
*/

package sample;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Tooltip;
import javafx.stage.Stage;

import javafx.event.Event;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;

import javax.swing.*;

public class Main extends Application {

    private Button boton;
    private StackPane panel;


    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));

        panel = new StackPane();

        boton = new Button("Activa");
        boton.setVisible(true);
        boton.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                javax.swing.JOptionPane.showMessageDialog(null,"Hola mundo");
            }
        });



        panel.getChildren().add(boton);

        Scene escena = new Scene(panel, 250, 150, Color.BLACK);


        primaryStage.setTitle("Iniciando con Java FX");
        primaryStage.setScene(new Scene(root, 300, 275));
        primaryStage.setScene(escena);
        primaryStage.show();
    }


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