How to send data to COM PORT using JAVA

Question

Possible Duplicate    Java Serial Communication on Windows       Friends  I want to connect and transfer data to COM PORT  either virtual or original  in JAVA

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The Java Communications API  also known as javax comm  provides applications access to RS-232 hardware  serial ports   http   www oracle com technetwork java index-jsp-141752 html

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This question has been asked and answered many times   Read file from serial port using Java  Reading serial port in Java  Reading file from serial port in Java  Is there Java library or framework for accessing Serial ports   Java Serial Communication on Windows  to reference a few   Personally I recommend SerialPort from http   serialio com - it s not free  but it s well worth the developer  no royalties  licensing fee for any commercial project  Sadly  it is no longer royalty free to deploy  and SerialIO com seems to have remade themselves as a hardware seller  I had to search for information on SerialPort   From personal experience  I strongly recommend against the Sun  IBM and RxTx implementations  all of which were unstable in 24 7 use   Refer to my answers on some of the aforementioned questions for details  To be perfectly fair  RxTx may have come a long way since I tried it  though the Sun and IBM implementations were essentially abandoned  even back then   A newer free option that looks promising and may be worth trying is jSSC  Java Simple Serial Connector   as suggested by  Jodes comment

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An alternative to javax comm is the rxtx library which supports more platforms than javax comm

[java] How to send data to COM PORT using JAVA?

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