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Class JMenu. An implementation of a menu -- a popup window containing JMenuItem s that is displayed when the user selects an item on the JMenuBar . In addition to JMenuItem s, a JMenu can also contain JSeparator s. In essence, a menu is a button with an associated JPopupMenu . When the "button" is pressed, the JPopupMenu appears.
Definimos un objeto de la clase JMenuBar, 3 objetos de la clase JMenu y finalmente 4 objetos de la clase JMenuItem: private JMenuBar mb; private JMenu menu1,menu2,menu3; private JMenuItem mi1,mi2,mi3,mi4; Es importante notar el orden de creación de los objetos y como los relacionamos unos con otros.
JMenu() JMenu(String) JMenu(Action) Creates a menu. The string specifies the text to display for the menu. The Action specifies the text and other properties of the menu (see How to Use Actions). JMenuItem add(JMenuItem) JMenuItem add(String) Adds a menu item to the current end of the menu.
20 de may. de 2022 · Last Updated : 20 May, 2022. JMenuBar, JMenu and JMenuItems are a part of Java Swing package. JMenuBar is an implementation of menu bar . the JMenuBar contains one or more JMenu objects, when the JMenu objects are selected they display a popup showing one or more JMenuItems . JMenu basically represents a menu .
Java JMenuBar, JMenu and JMenuItem. The JMenuBar class is used to display menubar on the window or frame. It may have several menus. The object of JMenu class is a pull down menu component which is displayed from the menu bar. It inherits the JMenuItem class. The object of JMenuItem class adds a simple labeled menu item.
Following is the declaration for javax.swing.JMenu class −. public class JMenu extends JMenuItem implements Accessible, MenuElement Field. Following is the field for java.awt.Component class −. protected JMenu.WinListener popupListener − The window-closing listener for the popup. Class Constructors
4 de ene. de 2022 · In this Java Swing GUI tutorial for Beginners we will learn how to use the Java Swing JMenu Class. The JMenu class allows you to create a popup window containing Menu Items that are displayed...
