//给你一个示例程序,copy.gif;cut.gif;paste.gif你自己随便找个替一下。
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MenuTest
{
public static void main(String[] args)
{
MenuFrame frame = new MenuFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
}
/**
A frame with a sample menu bar.
*/
class MenuFrame extends JFrame
{
public MenuFrame()
{
setTitle("MenuTest");
setSize(WIDTH, HEIGHT); JMenu fileMenu = new JMenu("File");
JMenuItem newItem = fileMenu.add(new TestAction("New")); // demonstrate accelerators JMenuItem openItem = fileMenu.add(new TestAction("Open"));
openItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_O, InputEvent.CTRL_MASK)); fileMenu.addSeparator(); saveItem = fileMenu.add(new TestAction("Save"));
saveItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_S, InputEvent.CTRL_MASK)); saveAsItem = fileMenu.add(new TestAction("Save As"));
fileMenu.addSeparator(); fileMenu.add(new
AbstractAction("Exit")
{
public void actionPerformed(ActionEvent event)
{
System.exit(0);
}
}); // demonstrate enabled/disabled items fileMenu.addMenuListener(new FileMenuListener()); // demonstrate check box and radio button menus readonlyItem = new JCheckBoxMenuItem("Read-only"); ButtonGroup group = new ButtonGroup(); JRadioButtonMenuItem insertItem
= new JRadioButtonMenuItem("Insert");
insertItem.setSelected(true);
JRadioButtonMenuItem overtypeItem
= new JRadioButtonMenuItem("Overtype"); group.add(insertItem);
group.add(overtypeItem); // demonstrate icons Action cutAction = new TestAction("Cut");
cutAction.putValue(Action.SMALL_ICON,
new ImageIcon("cut.gif"));
Action copyAction = new TestAction("Copy");
copyAction.putValue(Action.SMALL_ICON,
new ImageIcon("copy.gif"));
Action pasteAction = new TestAction("Paste");
pasteAction.putValue(Action.SMALL_ICON,
new ImageIcon("paste.gif")); JMenu editMenu = new JMenu("Edit");
editMenu.add(cutAction);
editMenu.add(copyAction);
editMenu.add(pasteAction); // demonstrate nested menus JMenu optionMenu = new JMenu("Options"); optionMenu.add(readonlyItem);
optionMenu.addSeparator();
optionMenu.add(insertItem);
optionMenu.add(overtypeItem); editMenu.addSeparator();
editMenu.add(optionMenu); // demonstrate mnemonics JMenu helpMenu = new JMenu("Help");
helpMenu.setMnemonic('H'); JMenuItem indexItem = new JMenuItem("Index");
indexItem.setMnemonic('I');
helpMenu.add(indexItem); // you can also add the mnemonic key to an action
Action aboutAction = new TestAction("About");
aboutAction.putValue(Action.MNEMONIC_KEY,
new Integer('A'));
helpMenu.add(aboutAction); // add all top-level menus to menu bar JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar); menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(helpMenu); // demonstrate pop-ups popup = new JPopupMenu();
popup.add(cutAction);
popup.add(copyAction);
popup.add(pasteAction); getContentPane().addMouseListener(new
MouseAdapter()
{
public void mouseReleased(MouseEvent event)
{
if (event.isPopupTrigger())
popup.show(event.getComponent(),
event.getX(), event.getY());
}
});
} public static final int WIDTH = 300;
public static final int HEIGHT = 200; private JMenuItem saveItem;
private JMenuItem saveAsItem;
private JCheckBoxMenuItem readonlyItem;
private JPopupMenu popup; /**
updates the state of the file menu. The Save
menu option is disabled if the document is read only
*/
private class FileMenuListener implements MenuListener
{
public void menuSelected(MenuEvent evt)
{
saveItem.setEnabled(!readonlyItem.isSelected());
saveAsItem.setEnabled(!readonlyItem.isSelected());
} public void menuDeselected(MenuEvent evt) {}
public void menuCanceled(MenuEvent evt) {}
}
}/**
A sample action that prints the action name to System.out
*/
class TestAction extends AbstractAction
{
public TestAction(String name) { super(name); }
public void actionPerformed(ActionEvent event)
{
System.out.println(getValue(Action.NAME)
+ " selected.");
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MenuTest
{
public static void main(String[] args)
{
MenuFrame frame = new MenuFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
}
/**
A frame with a sample menu bar.
*/
class MenuFrame extends JFrame
{
public MenuFrame()
{
setTitle("MenuTest");
setSize(WIDTH, HEIGHT); JMenu fileMenu = new JMenu("File");
JMenuItem newItem = fileMenu.add(new TestAction("New")); // demonstrate accelerators JMenuItem openItem = fileMenu.add(new TestAction("Open"));
openItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_O, InputEvent.CTRL_MASK)); fileMenu.addSeparator(); saveItem = fileMenu.add(new TestAction("Save"));
saveItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_S, InputEvent.CTRL_MASK)); saveAsItem = fileMenu.add(new TestAction("Save As"));
fileMenu.addSeparator(); fileMenu.add(new
AbstractAction("Exit")
{
public void actionPerformed(ActionEvent event)
{
System.exit(0);
}
}); // demonstrate enabled/disabled items fileMenu.addMenuListener(new FileMenuListener()); // demonstrate check box and radio button menus readonlyItem = new JCheckBoxMenuItem("Read-only"); ButtonGroup group = new ButtonGroup(); JRadioButtonMenuItem insertItem
= new JRadioButtonMenuItem("Insert");
insertItem.setSelected(true);
JRadioButtonMenuItem overtypeItem
= new JRadioButtonMenuItem("Overtype"); group.add(insertItem);
group.add(overtypeItem); // demonstrate icons Action cutAction = new TestAction("Cut");
cutAction.putValue(Action.SMALL_ICON,
new ImageIcon("cut.gif"));
Action copyAction = new TestAction("Copy");
copyAction.putValue(Action.SMALL_ICON,
new ImageIcon("copy.gif"));
Action pasteAction = new TestAction("Paste");
pasteAction.putValue(Action.SMALL_ICON,
new ImageIcon("paste.gif")); JMenu editMenu = new JMenu("Edit");
editMenu.add(cutAction);
editMenu.add(copyAction);
editMenu.add(pasteAction); // demonstrate nested menus JMenu optionMenu = new JMenu("Options"); optionMenu.add(readonlyItem);
optionMenu.addSeparator();
optionMenu.add(insertItem);
optionMenu.add(overtypeItem); editMenu.addSeparator();
editMenu.add(optionMenu); // demonstrate mnemonics JMenu helpMenu = new JMenu("Help");
helpMenu.setMnemonic('H'); JMenuItem indexItem = new JMenuItem("Index");
indexItem.setMnemonic('I');
helpMenu.add(indexItem); // you can also add the mnemonic key to an action
Action aboutAction = new TestAction("About");
aboutAction.putValue(Action.MNEMONIC_KEY,
new Integer('A'));
helpMenu.add(aboutAction); // add all top-level menus to menu bar JMenuBar menuBar = new JMenuBar();
setJMenuBar(menuBar); menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(helpMenu); // demonstrate pop-ups popup = new JPopupMenu();
popup.add(cutAction);
popup.add(copyAction);
popup.add(pasteAction); getContentPane().addMouseListener(new
MouseAdapter()
{
public void mouseReleased(MouseEvent event)
{
if (event.isPopupTrigger())
popup.show(event.getComponent(),
event.getX(), event.getY());
}
});
} public static final int WIDTH = 300;
public static final int HEIGHT = 200; private JMenuItem saveItem;
private JMenuItem saveAsItem;
private JCheckBoxMenuItem readonlyItem;
private JPopupMenu popup; /**
updates the state of the file menu. The Save
menu option is disabled if the document is read only
*/
private class FileMenuListener implements MenuListener
{
public void menuSelected(MenuEvent evt)
{
saveItem.setEnabled(!readonlyItem.isSelected());
saveAsItem.setEnabled(!readonlyItem.isSelected());
} public void menuDeselected(MenuEvent evt) {}
public void menuCanceled(MenuEvent evt) {}
}
}/**
A sample action that prints the action name to System.out
*/
class TestAction extends AbstractAction
{
public TestAction(String name) { super(name); }
public void actionPerformed(ActionEvent event)
{
System.out.println(getValue(Action.NAME)
+ " selected.");
}
}
写一个容易的://Test.java
import javax.swing.*;class MyFrame extends JFrame {
MyFrame() {
setTitle("Test");
setSize(300, 200);
}
}
public class Test {
public static void main(String[] args) {
JFrame jellen = new MyFrame();
jellen.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jellen.show();
}
}