JMenuItem和JTollBar

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;

public class JMenuItemDemo3 {
	JFrame jf = null;
	JPopupMenu popup = null;
	
	public JMenuItemDemo3(){
		jf = new JFrame();
		JMenuBar menuBar = new JMenuBar();
		JMenu fileMenu = buildFileMenu();
		menuBar.add(fileMenu);
		PopupPanel pp = new PopupPanel();
		jf.getContentPane().add(pp,BorderLayout.CENTER);
		jf.setJMenuBar(menuBar);
		jf.getContentPane().add(buildToolBar(),BorderLayout.NORTH);
		jf.setSize(new Dimension(400,300));
		jf.setVisible(true);
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	public static void main(String...args){
		new JMenuItemDemo3();
	}
	
	public JMenu buildFileMenu(){
		JMenu fileMenu = new JMenu("File");
		fileMenu.setMnemonic('F');
		
		JMenuItem newf = new JMenuItem("New",new ImageIcon(".\\Icons\\home.jpg"));
		JMenuItem open = new JMenuItem("Open",new ImageIcon(".\\Icons\\home.jpg"));
		JMenuItem close = new JMenuItem("Close",new ImageIcon(".\\Icons\\home.jpg"));
		JMenuItem exit = new JMenuItem("Exit",new ImageIcon(".\\Icons\\home.jpg"));
		
		newf.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e){
				System.out.println(e.getSource().getClass());
			}
		});
		open.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e){
				System.out.println(e.getSource().hashCode());
			}
		});
		close.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e){
//				System.out.println(e.getSource());
				System.out.println(e.ACTION_FIRST);
				System.out.println(e.TEXT_EVENT_MASK);
			}
		});
		exit.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e){
				System.out.println(e.KEY_EVENT_MASK);
			}
		});
		
		newf.setMnemonic('N');
		open.setMnemonic('O');
		close.setMnemonic('C');
		exit.setMnemonic('E');
		
		newf.setAccelerator(KeyStroke.getKeyStroke('N', java.awt.Event.CTRL_MASK, false));
		open.setAccelerator(KeyStroke.getKeyStroke('O',java.awt.Event.CTRL_MASK,false));
		
		JMenu prefMenu = new JMenu("Preferences...");
		JMenuItem setPage = new JMenuItem("setPage",new ImageIcon(".\\Icons\\home.jpg"));
		setPage.setMnemonic('S');
		setPage.setAccelerator(KeyStroke.getKeyStroke('S',java.awt.Event.CTRL_MASK,false));
		prefMenu.add(setPage);
		
		fileMenu.add(newf);
		fileMenu.add(open);
		fileMenu.add(close);
		fileMenu.addSeparator();
		fileMenu.add(prefMenu);
		fileMenu.addSeparator();
		fileMenu.add(exit);
		
		return fileMenu;
	}
	
	public JToolBar buildToolBar(){
		JToolBar toolBar = new JToolBar();
		toolBar.setFloatable(true);
		
		ToolBarAction tba_new = new ToolBarAction("new",new ImageIcon(".\\Icons\\home.jpg"));
		//ToolBarAction tba_open = new ToolBarAction("open",new ImageIcon(".\\Icons\\home.jpg"));
		ToolBarAction tba_open = new ToolBarAction("open");
		
		JButton jb = null;
		jb = toolBar.add(tba_new);
		jb.setToolTipText((String)tba_new.getValue(Action.NAME));
		jb.setActionCommand("tba_new");
		toolBar.addSeparator();
		jb = toolBar.add(tba_open);
		jb.setToolTipText((String)tba_open.getValue(Action.NAME));
		jb.setActionCommand("tba_open");
		
		
		return toolBar;
	}
	
	
	class ToolBarAction extends AbstractAction{
		public ToolBarAction(String name,Icon icon){
			super(name,icon);
		}
		public ToolBarAction(String name){
			super(name);
		}
		@Override
		public void actionPerformed(ActionEvent e) {
			System.out.println(e.getActionCommand()+"\n");
		}
		
	}
	
	class PopupPanel extends JPanel implements MouseListener,PopupMenuListener,ActionListener{
		public PopupPanel(){
			popup = new JPopupMenu();
			
			JMenuItem theItem;
			popup.add(theItem = new JMenuItem("cut",new ImageIcon(".\\Icons\\home.jpg")));
			theItem.addActionListener(this);
			popup.add(theItem = new JMenuItem("copy",new ImageIcon(".\\Icons\\home.jpg")));
			theItem.addActionListener(this);
			popup.addSeparator();
			popup.add(theItem = new JMenuItem("Page Setup..."));
			theItem.addActionListener(this);
			
			popup.setBorder(new BevelBorder(BevelBorder.RAISED));
			
			popup.addPopupMenuListener(this);
			addMouseListener(this);
		}
		
		@Override
		public void mouseClicked(MouseEvent me){
			checkPopup(me);
		}
		@Override
		public void mousePressed(MouseEvent me){
			checkPopup(me);
		}
		@Override
		public void mouseReleased(MouseEvent me){
			checkPopup(me);
		}
		@Override
		public void mouseEntered(MouseEvent me){
			checkPopup(me);
		}
		@Override
		public void mouseExited(MouseEvent me){
			checkPopup(me);
		}
		@Override
		public void popupMenuWillBecomeVisible(PopupMenuEvent pme){
			System.out.println("popup become visible");
		}
		@Override
		public void popupMenuWillBecomeInvisible(PopupMenuEvent pme){
			System.out.println("popup become invisible");
		}
		@Override
		public void popupMenuCanceled(PopupMenuEvent pme){
			System.out.println("pupup canceled");
		}
		@Override
		public void actionPerformed(ActionEvent e){
			System.out.println("popup performed");
		}
		
		private void checkPopup(MouseEvent me){
			if(me.isPopupTrigger()){
				popup.show(me.getComponent(),me.getX(),me.getY());
			}
		}
	}
}

參考：深入淺出Java Swing程序設計