short.java~18~

提供了常用的JAVA技术的示例

package Short;

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

public class Short implements ActionListener{
    private Frame f=new Frame("多级菜单示例");
    private Menu m1=new Menu("文件");
    private Menu m2=new Menu("编辑");
    private Menu mhelp=new Menu("帮助");
    private MenuBar mb=new MenuBar();
    CheckboxMenuItem mi22=new CheckboxMenuItem("工具");
    MenuShortcut  s11=new MenuShortcut('N'),
                  s12=new MenuShortcut('O'),
                  s13=new MenuShortcut('S'),
                  s21=new MenuShortcut('F'),
                  s22=new MenuShortcut('H');
    private MenuItem mi11=new MenuItem("新建");
    private MenuItem mi12=new MenuItem("打开",s12);
    private MenuItem mi13=new MenuItem("保存",s13);
    private MenuItem mi21=new MenuItem("查找",s21);
    private MenuItem mih=new MenuItem("帮助文件",s22);

    public Short() {

        m1.add(mi11);
        m1.add(mi12);
        m1.add(mi13);
        m1.addSeparator(); // 分 隔 符
        m1.add(m2);
        m2.add(mi21);
        m2.add(mi22);
        mb.add(m1);
        mb.setHelpMenu(mhelp);
        mhelp.add(mih);
        f.setMenuBar(mb);
        f.setIconImage(new ImageIcon("image.gif").getImage());

        //mi11.addActionListener(this);
        mi12.addActionListener(this);
        mi13.addActionListener(this);
        mi21.addActionListener(this);
        mi22.addActionListener(this);
        mih.addActionListener(this);

        f.setSize(200,200);
        f.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){System.exit(0);}
            });
        f.setVisible(true);
    }
    public void actionPerformed(ActionEvent e){
        MenuItem i=(MenuItem)e.getSource();
        //CheckboxMenuItem c=(CheckboxMenuItem)e.getSource();
        System.out.println(i.getLabel());
        System.out.println(i.getShortcut());
        //System.out.println(c);
    }
    public static void main(String[] args) {
       Short s=new Short();
    }
}