File list (Check if you may need any files):
ball moving
ball moving\.classpath
ball moving\.project
ball moving\.settings
ball moving\.settings\org.eclipse.jdt.core.prefs
ball moving\bin
ball moving\bin\cn
ball moving\bin\cn\xuchang
ball moving\bin\cn\xuchang\Ball.class
ball moving\bin\cn\xuchang\Client$1.class
ball moving\bin\cn\xuchang\Client$2.class
ball moving\bin\cn\xuchang\Client$NumOnlyDocument.class
ball moving\bin\cn\xuchang\Client.class
ball moving\bin\cn\xuchang\LED.class
ball moving\bin\cn\xuchang\Server$1.class
ball moving\bin\cn\xuchang\Server.class
ball moving\bin\cn\xuchang\SocketClient.class
ball moving\bin\cn\xuchang\SocketService.class
ball moving\src
ball moving\src\cn
ball moving\src\cn\xuchang
ball moving\src\cn\xuchang\Ball.java
ball moving\src\cn\xuchang\Client.java
ball moving\src\cn\xuchang\LED.java
ball moving\src\cn\xuchang\Server.java
ball moving\src\cn\xuchang\SocketClient.java
ball moving\src\cn\xuchang\SocketService.java
java project
java project\.classpath
java project\.project
java project\.settings
java project\.settings\org.eclipse.jdt.core.prefs
java project\bin
java project\bin\com
java project\bin\com\wuzht
java project\bin\com\wuzht\Ball.class
java project\bin\com\wuzht\BallImpl.class
java project\bin\com\wuzht\ClientJFrame$1.class
java project\bin\com\wuzht\ClientJFrame$2.class
java project\bin\com\wuzht\ClientJFrame$3.class
java project\bin\com\wuzht\ClientJFrame$4.class
java project\bin\com\wuzht\ClientJFrame$5.class
java project\bin\com\wuzht\ClientJFrame.class
java project\bin\com\wuzht\Const.class
java project\bin\com\wuzht\IBall.class
java project\bin\com\wuzht\Param.class
java project\bin\com\wuzht\ServerJF$1.class
java project\bin\com\wuzht\ServerJF$2.class
java project\bin\com\wuzht\ServerJF$3.class
java project\bin\com\wuzht\ServerJF$4.class
java project\bin\com\wuzht\ServerJF$5.class
java project\bin\com\wuzht\ServerJF.class
java project\src
java project\src\com
java project\src\com\wuzht
java project\src\com\wuzht\Ball.java
java project\src\com\wuzht\BallImpl.java
java project\src\com\wuzht\ClientJFrame.java
java project\src\com\wuzht\Const.java
java project\src\com\wuzht\IBall.java
java project\src\com\wuzht\Param.java
java project\src\com\wuzht\ServerJF.java