core - serial port twoway communication java -

Hi, I am going to Java, my project is connected to the comm port in the directory, I have 15 integers for the port If the value must be sent, then other device will send 15 as feedback, now I am writing the output stream, but I am not getting the response. Please help me to solve this problem. (I'm using the javax.com package)

Thanks for the reply

< P> You also have to get InputStream, you can not read from OutputStream. Or am I missing something?

Also, remember to mention OutputStream.flush (), after writing your output, otherwise your data may be sent later - if the respondent is waiting for your data, then this is the most There is more chance where things go wrong. After saying this: The javax.comm package is actually outdated, the last time I worked with it, it seemed almost dislike to the Sun, or was not maintained at least in any way. You can see other solutions (comes to mind).