b0b25b72185a001d15289d9b62a86afb

里面所含源码是本人平时做程序的一些实例

package notepad;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class Notepad extends JFrame {
	JMenuBar mbMain;
	JMenu mnuSystem,mnuEdit,mnuHelp;
	JMenuItem mnuiCls,mnuiSave,mnuiClock,mnuiExit,
	mnuiContent,mnuiIndex,mnuiAbout,mnuiSelectAll,mnuiClear;
	public Notepad()
	{
		super("记事本");
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		Font font=new Font("宋体",Font.PLAIN,12);
		
		mbMain=new JMenuBar();
		mnuSystem=new JMenu("系统(S)");
		mnuEdit=new JMenu("编辑(E)");
		mnuHelp=new JMenu("帮助(H)");
		mnuSystem.setMnemonic('S');
		mnuEdit.setMnemonic('E');
		mnuHelp.setMnemonic(KeyEvent.VK_H);
		mbMain.add(mnuSystem);
		mbMain.add(mnuEdit);
		mbMain.add(mnuHelp);
		//初始化系统菜单
		mnuiCls=new JMenuItem("清除屏幕显示");
		mnuiSave=new JMenuItem("保存聊天记录");
		mnuiClock=new JMenuItem("显示系统时间");
		mnuiExit=new JMenuItem("退出系统");
		mnuiExit.addActionListener(
				new ActionListener(){
					public void actionPerformed(ActionEvent ae)
					{
						JOptionPane.showMessageDialog(null, "谢谢使用");
						System.exit(0);
					}
				}
		);
		mnuSystem.add(mnuiCls);
		mnuSystem.add(mnuiSave);
		mnuSystem.addSeparator();
		mnuSystem.add(mnuiExit);
		//初始化编辑菜单
		mnuiSelectAll=new JMenuItem("全选");
		mnuiClear=new JMenuItem("清空");
		mnuEdit.add(mnuiSelectAll);
		mnuEdit.add(mnuiClear);
		//初始化帮助菜单
		Icon icnContent=new ImageIcon("E:/java/images/22.gif");
		mnuiContent=new JMenuItem("目录",icnContent);
		mnuiIndex=new JMenuItem("索引");
		mnuiAbout=new JMenuItem("关于[HappChat]聊天系统");
		mnuHelp.add(mnuiContent);
		mnuHelp.add(mnuiIndex);
		mnuHelp.add(mnuiAbout);
		//设置组件字体
		mnuSystem.setFont(font);
		mnuEdit.setFont(font);
		mnuHelp.setFont(font);
		mnuiCls.setFont(font);
		mnuiSave.setFont(font);
		mnuiClock.setFont(font);
		mnuiExit.setFont(font);
		mnuiSelectAll.setFont(font);
		mnuiClear.setFont(font);
		mnuiContent.setFont(font);
		mnuiIndex.setFont(font);
		mnuiAbout.setFont(font);
		
		setJMenuBar(mbMain);
		setSize(250,150);
		setVisible(true);
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new Notepad();
	}

}