Java Bean 应用-预定构件（Inber 原创）

概述：这是两个Java bean应用的例子，实现航空预定机票的功能。

预定构件功能说明：

1，预定构件应包含二个面板，预定座位面板与乘客面板

2，在装入预定构件时不应有可用的乘客面板

3，当用户打入要预定的旅行地点.旅行日期及座位号时：

    (1)首先，应按以下格式生成乘客号：<place of  travel> <date of travel> <count of the seat number>

    (2)其次，在显示乘客号时应使乘客面板是可见的（注意：你可能重定BeanBox窗口中bean大小，以观看此乘客面板。而且，如果打入座位号为0，则不应显示乘客面板。）

    (3)当用户点击乘客面板的submit按钮时，此面板的所有域控件中文本应置为空   

    (4)上面步骤被重复，直到所接收的乘客材料个数等于预定的座位数为止

4，在已预定了所需座位号之后，给出所预定座位号的消息框应被显示d

5,乘客面板应作为bean创建，可以把嵌入在铁路预定应用或航空应用中

6，你需接受以下格式之一的旅行日期"dd/mm/yy","mm/dd/yy","dd-Month-yy"

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/*1
* Program file:   PsEvent.java
* Creat time:   08/01/2004
* Creat by:          InberKong
* Last Modify time:
* Modify by:      
* Function describe: Event Class
*/
import java.util.*;
public class PsEvent extends EventObject
{
 //
 public String number;
 public String name;
 public String address;
 public String phone;
 
 public PsEvent(Object source,String m1,String m2,String m3,String m4)
 {
  super(source);
  this.number=m1;
  this.name=m2;
  this.address=m3;
  this.phone=m4;
 }
}

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/*2
* Program file:   PsEventListener.java
* Creat time:   08/01/2004
* Creat by:          InberKong
* Last Modify time:
* Modify by:      
* Function describe: Event listener
*/

import java.util.*;
public interface PsEventListener extends EventListener
{
 public void psPerformed(PsEvent ev);
}
---------------------------

/*3
* Program file:   PsBean.java
* Creat time:   08/01/2004
* Creat by:          InberKong
* Last Modify time:
* Modify by:      
* Function describe: Passenger message bean
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class PsBean extends JPanel implements ActionListener
{
 JLabel lb_number;
 JLabel lb_name;
 JLabel lb_address;
 JLabel lb_phone;
 JTextField tf_number;
 JTextField tf_name;
 JTextField tf_address;
 JTextField tf_phone;
 JButton sbmt;
 PsEventListener pl;//声明事件监听
 
 
  public PsBean()
 {
  setLayout(new GridLayout(5,2));//设置布局管理器

  lb_number=new JLabel("Passenger Number:");//创建对象
  lb_name=new JLabel("Passenger Name:");
  lb_address=new JLabel("Passenger Address:");
  lb_phone=new JLabel("Passenger Phone:");
  
  tf_number=new JTextField(15);
  tf_name=new JTextField(15);
  tf_address=new JTextField(25);
  tf_phone=new JTextField(15);

  sbmt=new JButton("Submit");  
  
  add(lb_number);
  add(tf_number);
  add(lb_name);
  add(tf_name);
  add(lb_address);
  add(tf_address);
  add(lb_phone);
  add(tf_phone);
  add(sbmt);
  sbmt.addActionListener(this);//监听事件
  tf_number.setEnabled(false);  
 }
 
 
 public void actionPerformed(ActionEvent evt)
 {
  Object obj=evt.getSource();
  if(obj==sbmt)
  {
   PsEvent ev=new PsEvent(obj,tf_number.getText(),tf_name.getText(),tf_address.getText(),tf_phone.getText());
   pl.psPerformed(ev);
  }
  
 }
 
 public void PsListener(PsEventListener el)
 {
  pl=el;
 }
 public void setPnrno(String ptemp)
 {
  tf_number.setText(ptemp);
 }
  
 public void refresh()
 {
  tf_number.setText("");
  tf_name.setText("");
  tf_address.setText("");
  tf_phone.setText("");
 } 
 
}

---------------------

/*4
* Program file:   Bpanel.java
* Creat time:   08/01/2004
* Creat by:          InberKong
* Last Modify time:
* Modify by:      
* Function describe: Book panel bean
*/
import java.beans.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Bpanel extends JPanel implements PsEventListener,ActionListener
{
 JPanel pnl;
 BoxLayout blo;

 JLabel label_Date;
        JTextField text_Date;
          JLabel label_Place;
          JTextField text_Place;
          JLabel label_NOS;
          JTextField text_NOS;
          JButton button_Book;
   JLabel the_animation;
          String bank_Name="FlyMyWay Airlines";
          GridBagLayout gl_t;
          GridBagConstraints gbcs;
         
//乘客面板javabean
PsBean pb;

 int t_nos;
 int t_count;
 String t_passno;

        //Date format property with getter and setter methods   
        private String the_datFormat="mm/dd/yy";
        public String getDatFormat()
        {
              return the_datFormat;
        }
        public void setDatFormat(String temps)
        {
              the_datFormat=temps;
              if(the_datFormat=="mm/dd/yy")
                   text_Date.setText("mm/dd/yy");
              if(the_datFormat=="dd/mm/yy")
                   text_Date.setText("dd/mm/yy");
       if(the_datFormat=="dd-Month-yy")
     text_Date.setText("dd-Month-yy");
        }
       
        public Bpanel()
        {
  pnl=new JPanel();
 the_animation=new JLabel(bank_Name);
 label_Date=new JLabel("Enter Date of Travel:");
    text_Date=new JTextField(20);
    text_Date.setText(the_datFormat);

           label_Place=new JLabel("Enter Place of Travel:");
           text_Place=new JTextField(15);
 label_NOS=new JLabel("Enter Number of seats to be booked");
 text_NOS=new JTextField(5);
           button_Book=new JButton("BOOK SEATS");

    gl_t=new GridBagLayout();
  gbcs=new GridBagConstraints();
  pnl.setLayout(gl_t);
  
  gbcs.gridx=3;
  gbcs.gridy=10;
  gbcs.anchor=GridBagConstraints.NORTHWEST;
  gl_t.setConstraints(the_animation,gbcs);
  pnl.add(the_animation);

  gbcs.gridx=2;
  gbcs.gridy=20;
  gbcs.anchor=GridBagConstraints.NORTHWEST;
  gl_t.setConstraints(label_Date,gbcs);
  pnl.add(label_Date);
  
  gbcs.gridx=4;
  gbcs.gridy=20;
  gbcs.anchor=GridBagConstraints.NORTHWEST; 
  gl_t.setConstraints(text_Date,gbcs);
  pnl.add(text_Date);

  gbcs.gridx=2;
  gbcs.gridy=30;
  gbcs.anchor=GridBagConstraints.NORTHWEST;
  gl_t.setConstraints(label_Place,gbcs);
  pnl.add(label_Place);
  
  gbcs.gridx=4;
  gbcs.gridy=30;
  gbcs.anchor=GridBagConstraints.NORTHWEST; 
  gl_t.setConstraints(text_Place,gbcs);
  pnl.add(text_Place);

  gbcs.gridx=2;
  gbcs.gridy=40;
  gbcs.anchor=GridBagConstraints.NORTHWEST;
  gl_t.setConstraints(label_NOS,gbcs);
  pnl.add(label_NOS);
  
  gbcs.gridx=4;
  gbcs.gridy=40;
  gbcs.anchor=GridBagConstraints.NORTHWEST; 
  gl_t.setConstraints(text_NOS,gbcs);
  pnl.add(text_NOS);

  gbcs.gridx=3;
  gbcs.gridy=50;
  gbcs.anchor=GridBagConstraints.NORTHWEST; 
  gl_t.setConstraints(button_Book,gbcs);
  pnl.add(button_Book);
 
  button_Book.addActionListener(this); 
  textDisplay();
  pb=new PsBean();
  pb.PsListener(this);

  blo=new BoxLayout(this,BoxLayout.Y_AXIS);
  this.setLayout(blo);
  blo.addLayoutComponent("Booking Panel",pnl);
  blo.addLayoutComponent("Passenger Panel",pb);
  this.add(pnl);
  this.add(pb);
  pb.setVisible(false);  
  
        }
   public void textDisplay()
 {
   Font f=new Font("Times New Roman",Font.BOLD,30);
   the_animation.setFont(f);
   the_animation.setText(bank_Name);
 }
     
 
  public void actionPerformed(ActionEvent evt)
 {
  Object obj=evt.getSource();
  try{
      if(Integer.parseInt(text_NOS.getText())==0)
     JOptionPane.showMessageDialog(this,new String("Number of Passengers >0"));  
      if(obj==button_Book  && (Integer.parseInt(text_NOS.getText())>0))
      {
       text_Date.setEnabled(false);
       text_Place.setEnabled(false);
       text_NOS.setEnabled(false);
       button_Book.setEnabled(false);
       
       t_count=1;
     t_passno=text_Place.getText().trim()+text_Date.getText().trim()+String.valueOf(t_count);
       t_nos=Integer.parseInt(text_NOS.getText());
       pb.setPnrno(t_passno);
       pb.setVisible(true);
      }
   }
       catch(Exception e)
       {
   JOptionPane.showMessageDialog(this,new String("NumberFormat For input string is wrong,plese check it!"));       
       } 
  
 }
 public void psPerformed(PsEvent evt) 
 {
  
  t_count++;
  if(t_count<=t_nos)
  {
  t_passno=text_Place.getText().trim()+text_Date.getText().trim()+String.valueOf(t_count);
  pb.refresh();
  pb.setPnrno(t_passno);
  }
  else
  {
  pb.setVisible(false);
  t_count--;
  JOptionPane.showMessageDialog(this,new String("Number of Passenger Added : "+t_count));
  text_Date.setText(the_datFormat);
  text_Place.setText("");
  text_NOS.setText("");
  text_Date.setEnabled(true);
  text_Place.setEnabled(true);
  text_NOS.setEnabled(true);
  button_Book.setEnabled(true);
  pb.refresh();
  t_nos=0;
  t_count=0;
  }
  
 
 }
       
} 

------------------

/*5
* Program file:   app.java
* Creat time:   08/01/2004
* Creat by:          InberKong
* Last Modify time:
* Modify by:      
* Function describe: FlyMyWay Airlines
*/
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class app extends JFrame
{
 Bpanel panel=new Bpanel();//javabean
   public app()
   {
    this.getContentPane().add(panel);
    this.pack();
      this.setVisible(true);
   }
   public static void main(String args[])
   {
      new app();
   }
}
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