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

@SuppressWarnings("serial")
public class MyFrame extends Frame {
    [color=#FF0000]private MenuBar mb = new MenuBar();[/color]
    private Menu mt1, mt2, mt3, mt4;
    private MenuItem m;

    MyFrame(String name) {
        super(name);
        init();
    }

    public void init() {
        setLayout(new FlowLayout());
        setBounds(100, 100, 400, 300);
        [color=#FF0000]//mb = getMenuBar();[/color]
        mt1 = new Menu("文件");
        mt2 = new Menu("编辑");
        mt3 = new Menu("帮助");
        mt4 = new Menu("点击");
        m = new MenuItem("运算");
        mt4.add(m);
        mb.add(mt1);
        mb.add(mt2);
        mb.add(mt3);
        mb.add(mt4);
        this.setMenuBar(mb);
        this.setVisible(true);
    }

    public static void main(String args[]) {
        new MyFrame("接收程序");

    }
}