java 添加JMenu例子

import java.awt.*;<br />import javax.swing.*;<br />import java.awt.event.*;<br />public class MyJMenu<br />{<br />JFrame myFrame;<br />JMenuBar menubar;<br />JMenu file,edit,view,viewSub,about;<br />JMenuItem newFile,openFile,saveFile,exit,<br />copy,pause,<br />full,part,<br />viewSub_full,<br />viewSub_part,<br />author,help;<br />public MyJMenu()<br />{<br />myFrame=new JFrame("Chevi.C J Menu");<br />myFrame.setSize(200,300);<br />myFrame.setLocation(400,400);<br />myFrame.setVisible(true);</p><p>//利用事件監聽關閉.<br />myFrame.addWindowListener(new WindowAdapter()<br />{<br />public void windowClosing(WindowEvent e)<br />{<br />System.exit(0);<br />}<br />});<br />menubar=getMenu();<br />//注意,是setJMenuBar(),二不是awt的setMenuBar()...!!!!<br />myFrame.setJMenuBar(menubar);<br />}</p><p>//菜單設定<br />public JMenuBar getMenu()<br />{<br />menubar=new JMenuBar();</p><p>file=new JMenu("file");<br />edit=new JMenu("edit");<br />view=new JMenu("view");<br />viewSub=new JMenu("viewSon");<br />about=new JMenu("about");<br />newFile=new JMenuItem("new a file..");<br />openFile=new JMenuItem("open a file..");<br />saveFile=new JMenuItem("save..");<br />exit=new JMenuItem("exit");<br />file.add(newFile);<br />file.add(openFile);<br />file.add(saveFile);<br />//添加分割線,和awt中的不同,awt中的功能表項目可以用"-"表示分割線.<br />file.addSeparator();<br />file.add(exit);</p><p>menubar.add(file);</p><p>copy=new JMenuItem("copy");<br />pause=new JMenuItem("pause");<br />edit.add(copy);<br />edit.add(pause);<br />menubar.add(edit);<br />full=new JMenuItem("full screen");<br />part=new JMenuItem("window style");<br />view.add(full);<br />view.add(part);<br />viewSub_full=new JMenuItem("second full");<br />viewSub_part=new JMenuItem("second part");<br />viewSub.add(viewSub_full);<br />viewSub.add(viewSub_part);<br />//Menu add Menu......<br />view.add(viewSub);<br />menubar.add(view);<br />author=new JMenuItem("about Author");<br />help=new JMenuItem("help");<br />about.add(author);<br />about.add(help);<br />menubar.add(about);<br />return menubar;</p><p>}<br />public static void main(String[] args)//~!@<br />{<br />new MyJMenu();<br />}<br />};