package javaapplication5;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.stage.Stage;

public class JavaApplication5 extends Application {

    public static void main(String[] args) {
        launch(args);
    }
    int count = 0;
    Menu fileMenu;

    @Override
    public void start(Stage stage) throws Exception {
        float h = 300;
        float w = 300;
        Scene scene;
        MenuBar menuBar = new MenuBar();
        fileMenu = new Menu("File");
        MenuItem menuitem = new MenuItem();
        menuitem.setText("New");
        fileMenu.getItems().clear();
        fileMenu.getItems().addAll(menuitem);
        menuBar.getMenus().clear();
        menuBar.getMenus().addAll(fileMenu);
        Button insertMenuItemButton = new Button("Insert MenuItem");
        insertMenuItemButton.setTranslateX(50.0F);
        insertMenuItemButton.setTranslateY(50.0F);
        insertMenuItemButton.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent e) {
                final MenuItem newMenuItem = new MenuItem();
                newMenuItem.setText("Delete this menuItem " + count++);
                newMenuItem.setOnAction(new EventHandler<ActionEvent>() {
                    @Override
                    public void handle(ActionEvent t) {
                        int i = fileMenu.getItems().indexOf(newMenuItem);
                        if (i != -1) {
                            fileMenu.getItems().remove(i);
                        }
                    }
                });
                fileMenu.getItems().add(newMenuItem);
            }
        });
        scene = new Scene(new Group(), w, h);
        ((Group) scene.getRoot()).getChildren().clear();
        ((Group) scene.getRoot()).getChildren().addAll(menuBar, insertMenuItemButton);
        stage.setScene(scene);
        stage.show();
    }
}