How to create RadioMenuItem in JavaFX?

A menu is a list of options or commands presented to the user, typically menus contain items that perform some action. The contents of a menu are known as menu items and a menu bar holds multiple menus.

JavaFx supports three kinds of menu items namely − check menu item, custom menu item, and, radio menu item.

RadioMenuItem

A RadioMenuItem is a special MenuItem that has a checkmark (tick) similar to a checkbox. This has two states selected (with a checkmark) and unselected (without checkmark). It is represented by the javafx.scene.control.RadioMenuItem class.

You can add a bunch of radio-menu-items to a toggle group just like a toggle button or a radio button. If not added, it acts like a CheckMenuItem.

To add a CheckMenuItem in the menu −

• Instantiate the Menu class.

• Instantiate the RadioMenuItem class.

• Add all the created check menu menu-item to the menu as −

menu.getItems().add(item);

• Create a menu bar by instantiating the MenuBar class.

• Add the menu to the menu bar as −

menuBar.getMenus().add(menu);

• Add the menu bar to the scene.

Example

import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.Menu; import javafx.scene.control.MenuBar; import javafx.scene.control.MenuItem; import javafx.scene.control.RadioMenuItem; import javafx.scene.control.SeparatorMenuItem; import javafx.scene.paint.Color; import javafx.stage.Stage; public class RadioMenuItemExample extends Application {    @Override    public void start(Stage stage) {       //Creating a menu       Menu fileMenu = new Menu("File");       //Creating menu Items       Menu view = new Menu("Align");       MenuItem edit = new MenuItem("Edit");       MenuItem exit = new MenuItem("Exit");       //Creating menu items for the sub item edit       RadioMenuItem sub1 = new RadioMenuItem("Right");       RadioMenuItem sub2 = new RadioMenuItem("Left");       RadioMenuItem sub3 = new RadioMenuItem("Center");       //Adding toggle group to the view menu item       view.getItems().addAll(sub1, sub2, sub3);       //Creating a separator       SeparatorMenuItem sep = new SeparatorMenuItem();       //Adding all the menu items to the menu       fileMenu.getItems().addAll(edit, view, sep, exit);       //Creating a menu bar and adding menu to it.       MenuBar menuBar = new MenuBar(fileMenu);       menuBar.setTranslateX(200);       menuBar.setTranslateY(20);       //Setting the stage       Group root = new Group(menuBar);       Scene scene = new Scene(root, 595, 200, Color.BEIGE);       stage.setTitle("Menu Example");       stage.setScene(scene);       stage.show();    }    public static void main(String args[]){       launch(args);    } }

Output