main.java~23~

Tt s a good book ,if you want to learn java good

package sos;

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

public class Main extends JFrame implements ActionListener {
    public Main() {
        super("StudentOperationSystem");
        setSize(600, 400);
        Container content = getContentPane();
        content.setBackground(Color.white);

       // content.add("West", new Button("Modal"));
        //  add("East", new Button("Modeless"));
        addWindowListener(new InnerDestroyer());
        pack();
        JMenu choice0 = new JMenu("文件");
        choice0.setEnabled(true);
        JMenuItem m0;

        m0 = new JMenuItem("登录");
        m0.addActionListener(this);
        choice0.add(m0);

        m0 = new JMenuItem("关于");
        m0.addActionListener(this);
        choice0.add(m0);

        m0 = new JMenuItem("帮助");
        m0.addActionListener(this);
        choice0.add(m0);

        m0 = new JMenuItem("退出");
        m0.addActionListener(this);
        choice0.add(m0);

        JMenu choice1 = new JMenu("信息录入");
        JMenuItem m1;
        m1 = new JMenuItem("基本信息录入");
        m1.addActionListener(this);
        choice1.add(m1);
        m1 = new JMenuItem("课程信息录入");
        m1.addActionListener(this);
        choice1.add(m1);

        m1 = new JMenuItem("选课信息录入");
        m1.addActionListener(this);
        choice1.add(m1);

        m1 = new JMenuItem("返回");
        m1.addActionListener(this);
        choice1.add(m1);

        JMenu choice2 = new JMenu("统计查询");
        JMenuItem m2;

        m2 = new JMenuItem("基本信息查询");
        m2.addActionListener(this);
        choice2.add(m2);
        m2 = new JMenuItem("课程信息查询");
        m2.addActionListener(this);
        choice2.add(m2);
        m2 = new JMenuItem("选课信息查询");
        m2.addActionListener(this);
        choice2.add(m2);

        m2 = new JMenuItem("返回");
        m2.addActionListener(this);
        choice2.add(m2);

        JMenu choice3 = new JMenu("成绩查询");
        JMenuItem m3;

        m3 = new JMenuItem("开始成绩查询");
        m3.addActionListener(this);
        choice3.add(m3);

        m3 = new JMenuItem("返回");
        m3.addActionListener(this);
        choice3.add(m3);

        JMenu choice4 = new JMenu("成绩排序");
        JMenuItem m4;
        m4 = new JMenuItem("开始排序查询");
        m4.addActionListener(this);
        choice4.add(m4);

        m4 = new JMenuItem("返回");
        m4.addActionListener(this);
        choice4.add(m4);

        JMenuBar mBar = new JMenuBar();
        mBar.add(choice0);
        mBar.add(choice1);
        mBar.add(choice2);
        mBar.add(choice3);
        mBar.add(choice4);
        setJMenuBar(mBar);

        show();
    }

    /* public void actionPerformed(Event evt, Object what) {
         if ("登录".equals(what)) {
             new MainDialog(this, true);

         } else if ("Modeless".equals(what)) {
             new MainDialog(this, false);

         }

     }
     */
    public static void main(String[] args) {
        new Main();
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getActionCommand().equals("登录")) {
            new MainDialog(this, true);
        }
    }


    private class MainDialog extends Dialog {
        public int offsetX, offsetY;
        MainDialog(Frame frame, boolean modal) {
            super(frame, modal);
            setTitle(" Log In The System ");
            add("Center", new Button("Quit"));
            // offsetX += 20;
            // offsetY += 20;
            // move(offsetX, offsetY);
            //pack();
            show();
        }

        public boolean action(Event evt, Object what) {
            if ("Quit".equals(what)) {
                dispose();
                return true;
            }
            return false;
        }
    }


    private class InnerDestroyer extends WindowAdapter {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    }

}