Can private chat, public chat, you can also achieve the screenshot function, is a very good example.

java聊天程序（私聊+公聊+截图+传送文件）\java聊天程序-郁传仕-孙一泉-丁然\07281094 丁然-专题训练总结与反思.doc
.......................................\...............................\07281109孙一泉-专题训练总结与反思.doc
.......................................\...............................\07281113-郁传仕-专题训练总结与反思.doc
.......................................\...............................\testmychatroom1.6\.classpath
.......................................\...............................\.................\.project
.......................................\...............................\.................\bin\chat\CaptureScreen$1.class
.......................................\...............................\.................\...\....\CaptureScreen$2.class
.......................................\...............................\.................\...\....\CaptureScreen$BMPfilter.class
.......................................\...............................\.................\...\....\CaptureScreen$GIFfilter.class
.......................................\...............................\.................\...\....\CaptureScreen$JPGfilter.class
.......................................\...............................\.................\...\....\CaptureScreen$PicPanel.class
.......................................\...............................\.................\...\....\CaptureScreen$PNGfilter.class
.......................................\...............................\.................\...\....\CaptureScreen$Temp.class
.......................................\...............................\.................\...\....\CaptureScreen.class
.......................................\...............................\.................\...\....\ChatFrame$1.class
.......................................\...............................\.................\...\....\ChatFrame$acceptfilethread.class
.......................................\...............................\.................\...\....\ChatFrame$FontAttrib.class
.......................................\...............................\.................\...\....\ChatFrame$sendfilethread.class
.......................................\...............................\.................\...\....\ChatFrame.class
.......................................\...............................\.................\...\....\Connect$1.class
.......................................\...............................\.................\...\....\Connect.class
.......................................\...............................\.................\...\....\MyTextArea.class
.......................................\...............................\.................\...\....\PList.class
.......................................\...............................\.................\...\....\PopupListener.class
.......................................\...............................\.................\...\....\States.class
.......................................\...............................\.................\...\server\ChatServer.class
.......................................\...............................\.................\...\......\ClientProc.class
.......................................\...............................\.................\src\chat\1.gif
.......................................\...............................\.................\...\....\2.gif
.......................................\...............................\.................\...\....\ButtonSenddown.gif
.......................................\...............................\.................\...\....\CaptureScreen.java
.......................................\...............................\.................\...\....\ChatFrame.java
.......................................\...............................\.................\...\....\Client.class
.......................................\...............................\.................\...\....\Connect.java
.......................................\...............................\.................\...\....\msg.wav
....

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