Java IO.pdf - Nguyen Dang Binh

public static void main(String[] args) {
}
}
}
Java I/O
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.println(", a serial port: ");
break;
case CommPortIdentifier.PORT_PARALLEL:
System.out.println(", 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.println(" , a port of unknown type: ");
break;
}
try {
CommPort thePort = com.open("Port Tester", 20);
testProperties(thePort);
thePort.close();
}
catch (PortInUseException e) {
System.out.println("Port in use, can't test properties");
}
System.out.println();
public static void testProperties(CommPort thePort) {
try {
thePort.enableReceiveThreshold(10);
System.out.println("Receive threshold supported");
}
catch (UnsupportedCommOperationException e) {
System.out.println("Receive threshold not supported");
}
try {
thePort.enableReceiveTimeout(10);
System.out.println("Receive timeout not supported");
}
catch (UnsupportedCommOperationException e) {
System.out.println("Receive framing not supported");
}
try {
thePort.enableReceiveFraming(10);
System.out.println("Receive framing supported");
}
catch (UnsupportedCommOperationException e) {
System.out.println("Receive framing not supported");
}
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