Developing, Debugging, and Customizing BlackBerry Applications

Use the BlackBerry Client Object API, BlackBerry Device Application Framework API, as well as native Research in Motion (RIM) APIs to create or customize your device applications.

To learn more about the BlackBerry JDE, BlackBerry Java plug-in for Eclipse, or RIM BlackBerry APIs, go to the BlackBerry Java application development Web site at http://na.blackberry.com/eng/developers/javaappdev/.
Note: Do not modify generated MBO API or Device Application Designer generated code directly. For Device Application Designer Code, use the customization pattern documented in this guide by either adding event handlers or customization classes. For MBO generated code, create a layer on top of the MBOs using patterns native to the mobile operating system development to extend and add functionality.