By Bruce Hopkins
Bluetooth is a expertise for instant conversation that capabilities in a lot an analogous means that home/office laptops hook up with the web. it truly is normally used for brief burst communications rather than a continuing connection. due to this distinction, Bluetooth is extra generally discovered supported in instant telephones and private units.
Bluetooth for Java isn't an outline of Bluetooth. within the publication, Bruce Hopkins and Ranjith Antony describe the best way to strengthen instant Java functions utilizing Bluetooth for various structures. This comprises an API assessment of the Java library, improvement of Bluetooth-based providers, highlights of protection issues, and walkthroughs for improvement with a number of the diversified instruments to be had. courses are usually not simply J2ME (micro devices)-based, yet may also be for J2SE (client/desktop).
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Additional info for Bluetooth for Java
A good example would be a Bluetooth printer. " If you have a document, and you want to print it, then you would use the Service Discovery Protocol to find a printer that offers a printer service in your range. 1 RFCOMM RFCOMM is commonly known as the wireless serial port, or the cable replacement protocol. The name is derived from the fact that your serial ports are called COMMl, COMM2, etc. RFCOMM simulates the functionality of a standard serial port. For instance, a Bluetooth-enabled PDA would use the RFCOMM layer to synchronize its data to a Bluetooth-enabled PC as if they were physically connected by a cable.
Usually, the connection is USB, RS-232, or UART. Now, you are definitely going to need two Bluetooth devices, but you can get away with having only one Bluetooth host. How does this work? Well, if you have a PC that has two serial ports or two USB ports (or both), then you can connect both of your Bluetooth devices to your PC's ports. In order for this to work, you need to start two instances of your JVM; each JVM will have its own Bluetooth device. The Bluetooth host must meet the minimum requirements for the CLDC, so you need at least S12k total memory for the JVM.
Or javax. *, then you need to go through the JCP. The Role of the JSR-82 A JSR is a Java Specification Request in the Java Community Process. The JSR-82 is the formal JCP name for the Java APIs for Bluetooth. When a proposed JSR is approved, an Expert Group is formed by the specification lead. The specification lead for the JSR-82 was Motorola, and together with the JSR-82 Expert Group, they created the official Java Bluetooth APIs. The following companies participated in the JSR-82 Expert Group: • Extended Systems • IBM • Mitsubishi • Newbury Networks • Nokia • Parthus Technologies • Research in Motion (RIM) • Rococo Software • Sharp Electronics • Sony Ericsson • Smart Fusion • Smart Network Devices • Sun Microsystems • Symbian 35 Chapter3 • Telecordia • Vaultus • Zucotto The JSR-82 Expert Group also had three individual experts: Peter Dawson, Steven Knudsen, and Brad Threatt.