Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
JavaFX example to set action to the "exit" MenuItem
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.
You can create a menu item by instantiating the javafx.scene.control.MenuItem class.
Setting action to a ContextMenu
The Menu class inherits a property named onAction from the javafx.scene.control.ButtonBase class, which is of the type ObjectProperty<EventHandler<ActionEvent>>. This property represents the action that is invoked whenever you press the button. You can set the value to this property using the setOnAction() method.
To set action on a menu you need to −
Instantiate the Menu class.
Create a MenuItem objects and add them to the Menu.
Invoke the setOnAction() method the menu item object.
To the setOnAction() method you need to pass an EventHandler<ActionEvent> object wrapping the code for the action to perform within it. For exit operation, since you need to close the application you can use System.exit(0).
Example
import javafx.application.Application;
import javafx.event.ActionEvent;
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.image.ImageView;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class ExitMenuItemAction extends Application {
@Override
public void start(Stage stage) {
//Creating image view files
ImageView imgView1 = new ImageView("UIControls/open.png");
imgView1.setFitWidth(20);
imgView1.setFitHeight(20);
ImageView imgView2 = new ImageView("UIControls/Save.png");
imgView2.setFitWidth(20);
imgView2.setFitHeight(20);
ImageView imgView3 = new ImageView("UIControls/Exit.png");
imgView3.setFitWidth(20);
imgView3.setFitHeight(20);
//Creating menu
Menu fileMenu = new Menu("File");
//Creating menu Items
MenuItem item1 = new MenuItem("Open File", imgView1);
MenuItem item2 = new MenuItem("Save file", imgView2);
MenuItem item3 = new MenuItem("Exit", imgView3);
//Adding all the menu items to the menu
fileMenu.getItems().addAll(item1, item2, item3);
//Creating a menu bar and adding menu to it.
MenuBar menuBar = new MenuBar(fileMenu);
menuBar.setTranslateX(200);
menuBar.setTranslateY(20);
//Setting action to exit menu item
item3.setOnAction((ActionEvent t) -> {
System.exit(0);
});
//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
639 Views
