Bruce Hopkins

This article is the second installment in a two-part series on Java and Bluetooth. Last month you got your feet wet in Bluetooth (JDJ, Vol. 7, issue 8); if you don't remember what the role of a Bluetooth stack or a Bluetooth profile is in the context of a Bluetooth application, refer to Part 1. Let's recap. The basic concepts of any Bluetooth application (Java or otherwise) consist of the following components: Stack initialization Device management Device discovery Service discovery Service registration Communication We covered stack initialization last month, so let's proceed! Device Management LocalDevice and RemoteDevice are the two main classes in the Java Bluetooth Specification that let you perform device management. These classes allow you to request some statistical information about your Bluetooth device (LocalDevice) as well as some information about the dev... (more)

Wireless J2ME Applications with Java and Bluetooth

This is Part 1 of a two-part article that will show you how to write wireless J2ME applications using Bluetooth. If you're a J2ME developer, this will quite likely be your first introduction to Bluetooth. Perhaps you've heard a lot about it, but you're not sure what it is or how it works. Well, you've come to the right place. First, we'll look at the Bluetooth protocol, then compare it to another common wireless technology: 802.11b. Next, we'll look at the anatomy of a Java Bluetooth­enabled device and examine its components in detail. Later on, we'll dive into the details and e... (more)