File list (Check if you may need any files):
QQDemo\.classpath
......\.project
......\.settings\org.eclipse.core.resources.prefs
......\bin\com\it18zhang\App.class
......\...\...\.........\MyWindow.class
......\...\...\.........\SocketUtil.class
......\src\com\it18zhang\App.java
......\...\...\.........\MyWindow.java
......\...\...\.........\server\MessageReceiverThread.java
......\...\...\.........\......\MessageServer.java
......\...\...\.........\SocketUtil.java
......\...\...\.........\client
......\...\...\.........\server
......\bin\com\it18zhang
......\src\com\it18zhang
......\bin\com
......\src\com
......\.settings
......\bin
......\src
QQDemo