用java写的第一个比较大的程序

 程序具体分包如下:

--------------------------------client--------------------------------------------

-----------LoginDialog.java

package client;

import javax.swing.JDialog;
import javax.swing.JTextField;
import java.beans.PropertyChangeListener;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;
import java.beans.PropertyChangeEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;

class LoginDialog extends JDialog...{
    JOptionPane optionPane;
     public LoginDialog(JFrame frame)
  ...{
      super(frame, "Login Box", true);

      /** *//** label for the Welcome
   */
  final JLabel Welcome = new JLabel("Welcome to Symposium");
  /** *//** label for the Login field
   */
  final JLabel myLogin = new JLabel("User Name: ");
  /** *//** label for the Password field
   */
  final JLabel thePassword = new JLabel("Password: ");
  /** *//** text field that is used to input the login name
   */
  final JTextField loginName = new JTextField(12);
  /** *//** password field that is used to input the password
   */
  final JPasswordField password = new JPasswordField(12);



  password.setEchoChar('*');
  /** *//** An object array holding the login objects
   */
  //user version
  //Object[] array = {Welcome, myLogin, loginName, thePassword, password};
  //presenter version
  Object[] array = ...{Welcome, myLogin, loginName, thePassword, password};
  final String btnString1 = "Login";
  final String btnString2 = "Cancel";

  /** *//** An object array holding the button objects
   */
  Object[] options = ...{btnString1, btnString2};

  optionPane = new JOptionPane(array,
                              JOptionPane.CANCEL_OPTION,
                              JOptionPane.NO_OPTION,

                              new ImageIcon("2.jpg") ,options,options[0]);

        this.getContentPane().add(optionPane);
 //this. setContentPane(optionPane);
        this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
 //---------------------------------------------------------------
 optionPane.addPropertyChangeListener(new PropertyChangeListener() ...{
           public void propertyChange(PropertyChangeEvent e) ...{
               String prop = e.getPropertyName();

               if (isVisible()
                && (e.getSource() == optionPane)
                && (prop.equals(JOptionPane.VALUE_PROPERTY) ||
                    prop.equals(JOptionPane.INPUT_VALUE_PROPERTY))) ...{
                   Object value = optionPane.getValue();

                   if (value == JOptionPane.UNINITIALIZED_VALUE) ...{
                       return;
                   }

                   // Reset the JOptionPane's value.
                   optionPane.setValue(
                           JOptionPane.UNINITIALIZED_VALUE);

                   if (value.equals(btnString1)) ...{
                           login = loginName.getText();
                           myPassword = new String(password.getPassword());

                           setVisible(false);
                           password.setText("");
                   } else ...{ // user closed dialog or clicked cancel
                         System.exit(0);
                   }
               }
           }
       });

         this.pack();
        this.setLocation(150,150);
        this.setVisible(true);


  }
  public String loginName()
  ...{
  return login;
  }
  public String getPass()
  ...{
    return myPassword;
  }
  private String login;
/** *//** contain the password information
 */
private String myPassword;
/** *//** reflect the category
 */


 }

----------ClientUI.java

package client;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import constant.Constant;
public class ClientUI extends JFrame implements ActionListener,PropertyChangeListener...{
    String myName;
    private ClientClass client;
   private JButton send;
   private JTextArea edit;
   private JTextArea area;
   private JScrollPane show1;
   private JScrollPane show2;
   private JLabel label;
   private JMenu action;
   private JMenuItem modifyName;
   private JMenuBar menuBar;
   private JMenuItem exit;
   private JMenu     help;
   private JMenuItem about;
   /**//*
  *  (non-Javadoc)
  * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
  */
   public void propertyChange(PropertyChangeEvent e)
   ...{
           String name=e.getPropertyName();
           if(name.equals("public_chat"))
           ...{
                  rMsg((String) e.getNewValue());
           }

   }
   /**//* manipulate receive msg
    *
    */
   public void rMsg(String msg)
   ...{

           area.append(msg);
   }
  /**//* init method--------------------------------------
   *
   */
   public void init()
...{
     send=new JButton("Send");

     send.addActionListener(this);
     label=new JLabel("Message :  ");
     edit=new JTextArea(3,3);
     show2=new JScrollPane(edit);
     area=new JTextArea("Room 111 chat:  ",14,30);
     area.setEditable(false);
     show1=new JScrollPane(area);
  // JMenu-------------------------------------------
    menuBar=new JMenuBar();
    exit=new JMenuItem("Exit");
    exit.addActionListener(this);
    action=new JMenu("Action");
    modifyName=new JMenuItem("ModifyName");
    modifyName.addActionListener(this);
    action.add(modifyName);
    action.add(exit);
    help=new JMenu("Help");
    about=new JMenuItem("About");
    about.addActionListener(this);
    help.add(about);

    menuBar.add(action);
    menuBar.add(help);
 //layout------------------------------------------
     JPanel panel=new JPanel(new BorderLayout());
     panel.add(label,BorderLayout.WEST);
     panel.add(show2,BorderLayout.CENTER);
     panel.add(send,BorderLayout.EAST);
    getContentPane().add(show1,BorderLayout.CENTER);
    getContentPane().add(panel,BorderLayout.SOUTH);
    this.setJMenuBar(menuBar);
    this.addWindowListener(new WindowAdapter() ...{
        public void windowClosing(WindowEvent we) ...{
           System.exit(0);
    }
});
    setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
    this.setBounds(0,0,400,400);
    this.setVisible(true);
}
public ClientUI()
...{
         super("Client!");

         client=new ClientClass(Constant.Server_address,Constant.Server_port);
          loginUser();
         client.addPropertyChangeListener(this);
         init();
}
//loginUser()------------------------------------------
 public void  loginUser()
 ...{
     LoginDialog log=new LoginDialog(this);
      myName=log.loginName();
      String myPassword=log.getPass();
     if(myName.equals("")||myPassword.equals(""))
     ...{
        System.exit(-1);
     }
     client.loginUser(myName,myPassword);
 }
//--------------actionPerform-------------------------
  public void actionPerformed(ActionEvent e)
  ...{

          if(e.getSource()==send)
          ...{
                if(!edit.getText().equals(""))
                ...{
                 //   area.append(edit.getText()+" ");
                    client.output(myName +"_________说 ：：：  "+edit.getText());
                    edit.setText(null);
                }
          }
        else if(e.getSource()==modifyName)
        ...{
          myName=JOptionPane.showInputDialog(null,"input your wish name","modifyName"
                                             ,JOptionPane.INFORMATION_MESSAGE);
        }
       else if(e.getSource()==exit)
       ...{
        System.exit(0);
       }
      else if(e.getSource()==about)
      ...{
         JOptionPane.showMessageDialog(null,"作者—— 梁景波，作品完成于51假期， "
                                       ,"author",JOptionPane.INFORMATION_MESSAGE);
      }
   }
   public static void main(String[] args) ...{
                ClientUI client=new ClientUI();

        }

}

----------ClientClass.java

package client;
import java.net.*;
import java.io.*;
import java.beans.*;
import constant.Constant;
public class ClientClass ...{
        private Socket clientSocket;
    private ObjectInputStream in;
        private PropertyChangeSupport propertySupport;
        private ObjectOutputStream out;
//constructor-------------------------------------------

    public ClientClass(String address,final int port)...{
     try...{
         clientSocket=new Socket(address,port);
        out=new ObjectOutputStream(clientSocket.getOutputStream());
        in=new ObjectInputStream(clientSocket.getInputStream());
     }catch(IOException e)...{
       e.printStackTrace();

    }
         propertySupport=new PropertyChangeSupport(this);
         ServerReader socketRead = new ServerReader(this);
                socketRead.start();
    }
/**//* loginUser()-------------------------------------------------------
 *
 */

 public void loginUser(String name,String passWord)
 ...{
   try