我无法接受来自Java中的套接字的回复

I’ve this problem. I need to read the weight from a scale connected on local network. From hyperterminal I connect to a ip with port, open connection,I send the string “XN” , enter, and the scale write a new line in Hyperterminal with weight as string. I’ve tried to do the same from code using socket but I can get any result in return. Can you address me to some kind of example to help me ? This is the code I've tried without success.I’ve this problem. I need to read the weight fr