JAVA技术--JAVA基于PTP的局域网内的聊天共享文件的课程设计源代.doc

.java文件以下是本文件的内容，总共有MyWindow.java PPfriend.java QQDialog.java receiveSMG.java Recevie.java RecevieToOne.java SendFile.java SendToOne.java MyWindow.java package hf; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; class APanel extends Panel { TextArea chat_txt; APanel2 apanel2; public APanel() { chat_txt = new TextArea(40,40); chat_txt.setEditable(false); apanel2 = new APanel2(); setLayout(new BorderLayout()); add(West,chat_txt); add(East,apanel2); } } class APanel2 extends Panel { java.awt.List list; APanel2(){ try{ list = new java.awt.List(25,false); } catch(NullPointerException e){} setLayout(new BorderLayout()); add(Center,list); add(North, new Label(当前聊天者列表：)); add(East,new Label()); add(South,new Label(双击一个人的昵称可以进行交谈)); } } class BPanel extends Panel { TextField msg_txt; Button button1,button2,button3,button4,button5; //button1 button2用做 public BPanel() { msg_txt = new TextField(30); button1 = new Button(发送); button2 = new Button(刷新谈话区); button3 = new Button(刷新在线用户); setLayout(new FlowLayout(FlowLayout.LEFT)); add(new Label(发送的话)); add(msg_txt); add(button1); add(button2); add(button3); } } class MyWindow extends Frame { Label person; APanel pa; BPanel pb; public MyWindow() { super(..); person = new Label(聊天记录：); pa = new APanel(); pb = new BPanel(); setLayout(new BorderLayout()); setBackground(new Color(206,113,150)); setSize(550,450); setLocation(450,100); setResizable(false); add(North,person); add(Center,pa); add(South,pb); addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ System.exit(1); } }); setVisible(true); } } PPfriend.java package hf; import java.applet.Applet; import java.applet.AudioClip; import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; import java.util.*; import javax.swing.