JDK?<=?1.4
???/**
?????*?@return????A?HashSet?containing?the?CommPortIdentifier?for?all?serial?ports?that?are?not?currently?being?used.
?????*/
????public?static?HashSet?getAvailableSerialPorts（）?{
????????HashSet?h?=?new?HashSet（）;
????????Enumeration?thePorts?=?CommPortIdentifier.getPortIdentifiers（）;
????????while?（thePorts.hasMoreElements（））?{
????????????CommPortIdentifier?com?=?（CommPortIdentifier）?thePorts.nextElement（）;
????????????switch?（com.getPortType（））?{
????????????case?CommPortIdentifier.PORT_SERIAL:
????????????????try?{
????????????????????CommPort?thePort?=?com.open（“CommUtil“?50）;
????????????????????thePort.close（）;
????????????????????h.add（com）;
????????????????}?catch?（PortInUseException?e）?{
????????????????????System.out.println（“Port?“??+?com.getName（）?+??“?is?in?use.“）;
????????????????}?catch?（Exception?e）?{
????????????????????System.err.println（“Failed?to?open?port?“?+?com.getName（））;
????????????????????e.printStackTrace（）;
????????????????}
????????????}
????????}
????????return?h;
????}
JDK?>=?5.0
???/**
?????*?@return????A?HashSet?containing?the?CommPortIdentifier?for?all?serial?ports?that?are?not?currently?being?used.
?????*/
????public?static?HashSet?getAvailableSerialPorts（）?{
????????HashSet?h?=?new?HashSet（）;
????????Enumeration?thePorts?=?CommPortIdentifier.getPortIdentifiers（）;
????????while?（thePorts.hasMoreElements（））?{
????????????CommPortIdentifier?com?=?（CommPortIdentifier）?thePorts.nextElement（）;
????????????switch?（com.getPortType（））?{
????????????case?CommPortIdentifier.PORT_SERIAL:
????????????????try?{
????????????????????CommPort?thePort?=?com.open（“CommUtil“?50）;
????????????????????thePort.close（）;
????????????????????h.add（com）;
????????????????}?catch?（PortInUseException?e）?{
????????????????????System.out.println（“Port?“??+?com.getName（）?+?“?is?in?use.“）;
????????????????}?catch?（Exception?e）?{
????????????????????System.err.println（“Failed?to?open?port?“?+??com.getName（））;
????????????????????e.printStackTrace（）;
????????????????}
????????????}
????????}
????????return?h;
????}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2186??2018-03-27?12:28??rxtx\examples\Discovering?available?comm?ports.java

?????文件???????1026??2018-03-27?12:28??rxtx\examples\Discovering?comm?ports.java

?????文件???????3782??2018-03-27?12:31??rxtx\examples\Event?based?Two?Way?Communication.txt

?????文件???????3029??2018-03-27?12:27??rxtx\examples\ParallelCommunication.java

?????文件???????3077??2018-03-27?12:30??rxtx\examples\Two?way?communcation?with?the?serial?port.java

?????文件????????166??2018-03-27?12:32??rxtx\readme.txt

?????文件?????610316??2018-03-27?12:19??rxtx\rxtx-2.1-7-bins-r2.zip

?????文件????1345757??2018-03-27?12:20??rxtx\rxtx-2.1-7r2-source.zip

?????目錄??????????0??2018-03-27?12:31??rxtx\examples

?????目錄??????????0??2018-03-27?12:32??rxtx

-----------?---------??----------?-----??----

??????????????1969339????????????????????10