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Port programming

 
Darryl Sumner
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I have looked found a lot of articles on the net about Java port programming on the net, but they end up involving other languages. So here's my question, Is it possible to program computer hardware like parallel ports directly in Java or does a native method have to be used. I'm into building automation and programming robotics using the Parallax stamps but want to venture into programming the parallel port to use LEDs to begin my journey into hardware programming with Java.
 
Ulf Dittmer
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Yep, that's possible. See http://docs.oracle.com/javase/tutorial/networking/, particularly the chapter "All About Sockets".
 
Marco Ehrentreich
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@Ulf: I guess, Darryl wasn't asking for ports as in UDP/TCP port but instead wanted to know how to handle serial/parallel ports in Java ;-)

In general that's possible but you'll need a library with some native support. At least I don't know of a pure Java solution. The only library I know for programming serial/parallel ports in Java is RXTX although I must admit I don't know if this is a very portable solution which works on any platform. Perhaps you should have a look at the examples and just give it a try.

Marco
 
Tony Docherty
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There is also the Java Comms Package which works on Solaris and Linux but not Windows. I used the RXTX package on a Windows system many, many moons ago and from memory it worked well and I believe it also works on Linux.
 
Darryl Sumner
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Thanks for the help guys. I got a book called Serial Port Complete. It's a pretty good read so far.
 
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