IBM User Guide for Java V7 on Windows > Developing Java applications
Java Communications API (JavaComm)
The Java™ Communications (API) package (JavaComm) is an optional package provided for use with the Runtime Environment for Windows. You install JavaComm independently of the SDK or Runtime Environment.
The JavaComm API gives Java applications a platform-independent way of performing serial and parallel port communications for technologies such as voice mail, fax, and smartcards.
The Java Communications API supports Electronic Industries Association (EIA)-232 (RS232) serial ports and Institute of Electrical and Electronics Engineers (IEEE) 1284 parallel ports and is supported on systems with the IBM Version 7 Runtime Environment.
Using the Java Communications API, you can:
- List ports on a system
- Open and claim ownership of ports
- Resolve port ownership contention among applications that use Java Communications API
- Perform asynchronous and synchronous I/O port-monitoring using event notification
- Receive bean-style events describing state changes on the port
- Installing Java Communications API from a compressed file
Make sure that the SDK or Runtime Environment is installed before you install the Java Communications API.- Configuring the Java Communications API
To use the Java Communications API, you must change the access mode of serial and parallel ports, and set the PATH if you did not set it when you installed Java.- Printing limitation with the Java Communications API
When printing with the Java Communications API, you might have to select "Form feed", "Continue", or a similar option on the printer.- Uninstalling Java Communications API
To uninstall the Java Communications API, delete the following files from the directory where you installed the Runtime Environment:- The Java Communications API documentation
You can find API documentation and samples for the Java Communications API at the Oracle Web site.
Parent: Developing Java applications
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