Java AWT PopupMenu _JavaAWTPopupMenu

本文概述

AWT PopupMenu类声明
Java AWT PopupMenu示例

【Java AWT PopupMenu】PopupMenu可以在组件内的特定位置动态弹出。它继承了Menu类。
AWT PopupMenu类声明

public class PopupMenu extends Menu implements MenuContainer, Accessible

Java AWT PopupMenu示例

import java.awt.*; import java.awt.event.*; class PopupMenuExample { PopupMenuExample(){ final Frame f= new Frame("PopupMenu Example"); final PopupMenu popupmenu = new PopupMenu("Edit"); MenuItem cut = new MenuItem("Cut"); cut.setActionCommand("Cut"); MenuItem copy = new MenuItem("Copy"); copy.setActionCommand("Copy"); MenuItem paste = new MenuItem("Paste"); paste.setActionCommand("Paste"); popupmenu.add(cut); popupmenu.add(copy); popupmenu.add(paste); f.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { popupmenu.show(f , e.getX(), e.getY()); } }); f.add(popupmenu); f.setSize(400, 400); f.setLayout(null); f.setVisible(true); } public static void main(String args[]) { new PopupMenuExample(); } }

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