Enumeration thePorts = CommPortIdentifier.getPortIdentifiers();
while (thePorts.hasMoreElements()) {
CommPortIdentifier com = (CommPortIdentifier) thePorts.nextElement();
System.out.print(com.getName());
switch(com.getPortType()) {
case CommPortIdentifier.PORT_SERIAL:
System.out.print(", a serial port, ");
break;
case CommPortIdentifier.PORT_PARALLEL:
System.out.print(", a parallel port, ");
break;
default:
// important since other types of ports like USB
// and firewire are expected to be added in the future
System.out.print(" , a port of unknown type, ");
break;
}
try {
CommPort thePort = com.open("PortOpener", 10);
System.out.println("is not currently owned.");
thePort.close();
}
catch (PortInUseException ex) {
String owner = com.getCurrentOwner();
if (owner == null) owner = "unknown";
System.out.println("is currently owned by " + owner + ".");
}
}
