Some of these might help, depending on what you are trying to accomplish:
- checking the values of system properties 'microedition.profiles', 'microedition.configuration', etc.
- Using a try / catch block for 'Class.forName(String className)' and ClassNotFoundException might help an application to infer that some API (e.g. from an optional package) is available or not. This might be helpful in some specific cases (e.g. sound effects). But it ought to be used judiciously, if at all.
- Some optional package APIs may also provide some additional support. For example, the JSR-82 Bluetooth API allows one to query a device property 'bluetooth.api.version', using the JSR-82 API specific class javax.bluetooth.LocalDevice. [ July 13, 2004: Message edited by: James Reilly ]