Serial Programming - upload.wikimedia....

JavaComm API
wantedPortName);
System.exit(1);
}
//
// Use port identifier for acquiring the port
//
...
Note:
JavaComm itself obtains the default list of available serial port identifiers from its
platform-specific driver. The list is not really configurable via JavaComm. The method
CommPortIdentifier.addPortName() is misleading, since driver classes are platform
specific and their implementations are not part of the public API. Depending on the
driver, the list of ports might be configurable / expendable in the driver. So if a particular
port is not found in JavaComm, sometimes some fiddling with the driver can help.
Once a port identifier has been found, it can be used to acquire the desired port:
//
// Use port identifier for acquiring the port
//
SerialPort port = null;
try {
port = (SerialPort) portId.open(
"name", // Name of the application asking for the port
10000 // Wait max. 10 sec. to acquire port
);
} catch(PortInUseException e) {
System.err.println("Port already in use: " + e);
System.exit(1);
}
//
// Now we are granted exclusive access to the particular serial
// port. We can configure it and obtain input and output streams.
//
...
6.2.3 Initialize a Serial Port
The initialization of a serial port is straight forward. Either individually set the communication
preferences (baud rate, data bits, stop bits, parity) or set them all at once using the
setSerialPortParams(...) convenience method.
As part of the initialization process the Input and Output streams for communication will
be configured in the example.
import java.io.*;
...
//
// Set all the params.
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