Developer's Guides

This section includes more in-depth guides for the optional APIs in Series 40 and Symbian platforms. The guides are organized by topic, and some topics contain multiple Developer's Guides. All guides include API descriptions, usage instructions and source codes.

• Application framework
• UI and graphics
  This section describes how to design user interfaces with the MIDP 2.1 (JSR-118) API and its extensions. The guide also provides links to several step-by-step guides to help you to build example MIDlets that demonstrate different aspects and capabilities of the various APIs you can use to design user interfaces and graphics/animation for applications.
• Multimedia
• Security
• Wireless messaging
  This section describes using wireless messaging in Java™ applications.
• Data handling
  This section describes the various advanced possibilities for data handling in MIDlets. The described APIs are the FileConnection and PIM APIs for file and personal information management, the Mobile Sensor API for receiving data from sensors integrated into the device, and the Contactless Communication API for using the Near Field Communication (NFC) capabilities of the device to communicate with contactless targets.
• Networking
  This section describes networking in Java™ applications. The focus is on the Web Services, Bluetooth, and SIP APIs.
• Invoking applications
  This section describes how to launch applications from other MIDlets or external sources.
• Location
  This section describes using Location-Based Services (LBS) in Java™ applications.