Добрый день. Как можно отследить нажатие каждой кнопки?

public class main extends Application{
    public static void main(String[] args) {
        launch(args);
    }
    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("Создание панели.");
        Group root = new Group();
        Scene scene = new Scene(root, 850, 300);

        Button[] buttonProject = new Button[5];

        for(int i = 0 ;i<buttonProject.length;i++){
            buttonProject[i]=new Button();
            buttonProject[i].setText("Кнопка №" + i);

            buttonProject[i].setLayoutX(100 + i * 140);

            root.getChildren().add(buttonProject[i]);

        }

        primaryStage.setTitle("JavaFX");
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

setOnAction

пример можно? 

http://docs.oracle.com/javase/8/javafx/use...rial/button.htm

public class main extends Application{
    public static void main(String[] args) {
        launch(args);
    }
    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("Создание панели.");
        Group root = new Group();
        Scene scene = new Scene(root, 850, 300);

        Text text = new Text();
        text.setX(50);
        text.setY(100);
        text.setText("Ничего не нажато");

        Button[] buttonProject = new Button[5];

        for(int i = 0 ;i<buttonProject.length;i++){
            buttonProject[i]=new Button();
            buttonProject[i].setText("Кнопка №" + i);

            buttonProject[i].setLayoutX(100 + i * 140);
            buttonProject[i].setLayoutY(20);
            final int finalI = i;
            buttonProject[i].setOnAction((ActionEvent e) -> {
                text.setText(buttonProject[finalI].getText() + " нажата");
            });

            root.getChildren().addAll(buttonProject[i]);

        }
        root.getChildren().add(text);

        primaryStage.setTitle("JavaFX");
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}