import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.*;
public class Inquest extends JDialog implements ActionListener
{
  Hashtable 基本信息表=null;
  JTextField 學號,姓名,專業,年級,出生;
  JRadioButton 男,女;
  JButton 查詢;
  ButtonGroup group=null;
  FileInputStream inOne=null;
  ObjectInputStream inTwo=null;
  File file=null;
  public Inquest(JFrame f,File file)
  {
   super(f, "查詢對話框",false);
   this.file=file;
   學號=new JTextField(10);
   查詢=new JButton("查詢");
   學號.addActionListener(this);
   查詢.addActionListener(this);
   姓名=new JTextField(10);
   姓名.setEditable(false);
   專業=new JTextField(10);
   專業.setEditable(false);
   年級=new JTextField(10);
   年級.setEditable(false);
   出生=new JTextField(10);
   出生.setEditable(false);
   男=new JRadioButton("男",false);
   女=new JRadioButton("女",false);
   group=new ButtonGroup();
   group.add(男);
   group.add(女);
   Box box1=Box.createHorizontalBox();
   box1.add(new JLabel("輸入要查詢的學號:",JLabel.CENTER));
   box1.add(學號);
   box1.add(查詢);
   Box box2=Box.createHorizontalBox();
   box2.add(new JLabel("姓名:",JLabel.CENTER));
   box2.add(姓名);
   Box box3=Box.createHorizontalBox();
   box3.add(new JLabel("性別:",JLabel.CENTER));
   box3.add(男);
   box3.add(女);
   Box box4=Box.createHorizontalBox();
   box4.add(new JLabel("專業:",JLabel.CENTER));
   box4.add(專業);
   Box box5=Box.createHorizontalBox();
   box5.add(new JLabel("年級:",JLabel.CENTER));
   box5.add(年級);
   Box box6=Box.createHorizontalBox();
   box6.add(new JLabel("出生:",JLabel.CENTER));
   box6.add(出生);
   Box boxH=Box.createVerticalBox();
   boxH.add(box1);
   boxH.add(box2);
   boxH.add(box3);
   boxH.add(box4);
   boxH.add(box5);
   boxH.add(box6);
   boxH.add(Box.createVerticalGlue());
   JPanel pCenter=new JPanel();
   pCenter.add(boxH);
   Container con=getContentPane();
   con.add(pCenter,BorderLayout.CENTER);
   con.validate();
   setVisible(false);
   setBounds(100,200,360,270);
   addWindowListener(new WindowAdapter()
              {public void windowClosing(WindowEvent e)
               {
                 setVisible(false);
                   }
                   });
   }
   public void actionPerformed(ActionEvent e)
   {
     姓名.setText(null);
     專業.setText(null);
     年級.setText(null);
     出生.setText(null);

   if(e.getSource()==查詢||e.getSource()==學號)
     {
     String number=" ";
     number=學號.getText();
     if(number.length()>0)
       {
         try{
              inOne=new FileInputStream(file);
              inTwo=new ObjectInputStream(inOne);
              基本信息表=(Hashtable)inTwo.readObject();
              inOne.close();
              inTwo.close();
            }
        catch(Exception ee)
            {
            }
       if(基本信息表.containsKey(number))
          {
            Student stu=(Student)基本信息表.get(number);
            姓名.setText(stu.getName());
            專業.setText(stu.getDisciping());
            年級.setText(stu.getGrade());
            出生.setText(stu.getBorth());
            if(stu.getSex().equals("男"))
              {
                男.setSelected(true);
              }
            else
              {
                女.setSelected(true);
              }
          }
        else
          {
            String warning="該學號不存在!";
            JOptionPane.showMessageDialog(this,warning,
                               "警告",JOptionPane.WARNING_MESSAGE);
          }   
        }
      else
        {
         String warning="必須輸入學號!";
         JOptionPane.showMessageDialog(this,warning,"警告",JOptionPane.
                                       WARNING_MESSAGE);
        }
      }
    }
  }