Cưng thay thế thông thường ISDN truy cập hồ sơ cá nhân mở rộng dịch vụ khám phá hồ sơ Human Interface Device hồ sơ dịch vụ khám phá ứng dụng hồ sơ cá nhân Area Network Hồ Sơ | 44 Chapter Three High-Level Architecture information into the Bluetooth security process. What type of information can the BCC retrieve from the user It can range from a PIN to simply responding to a permission request. BCC on Devices with No User Interface Because JABWT is based on CLDC there is no guarantee that a user interface UI is available on the device. In this situation the OEM or device manufacturer is expected to set the BCC configuration in the device. Actions that require user interaction are more complicated. A BCC on a non-graphical user interface GUI device might not support these types of actions or can specify the responses to these actions when the device is manufactured. Simple JABWT Application Before describing the details of the classes and methods defined in JABWT the traditional Hello World application is shown. This example shows how code is presented in the remainder of the book. Because Bluetooth technology is a wireless radio technology developing applications requires hardware or a simulator. To enable readers to try out the code in this book the following section also describes how to set up a development environment that makes it possible to build and test JABWT code in a simulated environment. Development Tools Developing and testing Java ME applications especially testing on a device can be a complicated process. Device testing is complicated due to a general lack of debug tools and the effort it takes to download and install an application. Therefore device simulators have been developed to allow developers to create and debug applications on a desktop computer before testing them on a device. A common tool for Java ME development is the Sun Java Wireless Toolkit available at javame. The Wireless Toolkit provides software emulation of devices that support a variety of Java ME specifications. The Wireless Toolkit also provides support for building packaging and testing Java MIDlets. Support for JSR-82 .
