add files
add file ParseXML.java,but have a bug
fix ParseXML could not retrive smart meter data
add mina hello world examle
add mina udp client
recover from delete
modify Print.java
Delete q
add rmi example
Merge branch 'programming' of https://github.com/zhangmin510/code.zhangmin.name into programming
add GateWayServer not finished
recover gateway server
recover gateway server for testing positioning sensor
Merge branch 'expriment' into programming
recover from misuse of git
add jmx example code
add jmx server client example
add jmx rmi connector
add log4j example
update .gitignore