WidowMenu.java
package chuangkou;
import javax.swing.*;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import static javax.swing.JFrame.*;
public class WindowMenu extends JFrame{
JMenuBar menubar;
JMenu menu,subMenu;
JMenuItem item1,item2;
public WindowMenu() {}
public 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);
}
void init(String s) {
setTitle(s);
menubar=new JMenuBar();
menu=new JMenu("菜单");
subMenu=new JMenu("软件项目");
item1=new JMenuItem("java话题");
item2=new JMenuItem("动画话题");
item1.setAccelerator(KeyStroke.getKeyStroke('A'));
item2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_DOWN_MASK));
menu.add(item1);
menu.addSeparator();
menu.add(item2);
menu.add(subMenu);
subMenu.add(new JMenuItem("汽车销售系统"));
subMenu.add(new JMenuItem("农场信息"));
menubar.add(menu);
setJMenuBar(menubar);
}
}
Example9_2.java
package chuangkou;
public class Example9_2 {
public static void main(String arg[]) {
WindowMenu win=new WindowMenu("带菜单的窗口",20,30,200,190);
}
}
执行之后的结果: