新建WindowMenu类
package com.lion.string;
import javax.swing.*;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
class WindowMenu extends JFrame {
WindowMenu(String s, int x, int y, int w, int h) {
init(s);
setLocation(x,y);
setSize(w,h);
setVisible(true);
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}
private void init(String s) {
setTitle(s);
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("菜单");
JMenu subMenu = new JMenu("软件项目");
JMenuItem jMenuItem1 = new JMenuItem("java话题", new ImageIcon("a.gif"));
JMenuItem jMenuItem2 = new JMenuItem("动画话题", new ImageIcon("b.gif"));
jMenuItem1.setAccelerator(KeyStroke.getKeyStroke('A'));
jMenuItem2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK));
menu.add(jMenuItem1);
menu.addSeparator();
menu.add(jMenuItem2);
menu.add(subMenu);
subMenu.add(new JMenuItem("汽车销售系统",new ImageIcon("c.gif")));
subMenu.add(new JMenuItem("农场信息系统",new ImageIcon("d.gif")));
menuBar.add(menu);
setJMenuBar(menuBar);
}
}
新建启动类(主类、主函数)
package com.lion.string;
public class MenuTest {
public static void main(String[] args) {
WindowMenu windowMenu = new WindowMenu("带菜单的窗口",20,30,200,190);
}
}
最后说明一下,类的注释、方法的注释,都写成javadoc形式 即用这个/**/ ,别用这个//,如上述代码所示。