System properties

As mobile devices feature a large amount of different possible API combinations and other device features, you may need to utilize system properties in your MIDlet. System properties can tell what versions of APIs are installed, what localized directory names are used, or whether a certain feature is available. System properties can be retrieved with the System.getProperty() method on runtime. The returned value reveals whether the API is available, for example.

For a list of system properties in different APIs, see the following links:

• Generic system properties for Nokia devices and S60 devices in general (defined in CLDC, MIDP, and JTWI/MSA

• Mobile Media API system properties

• Wireless Messaging API system properties

• FileConnection API system properties

• Bluetooth API system properties

  Note: Note: With the Bluetooth API, the LocalDevice.getProperty() method should be used to retrieve system properties; for example: LocalDevice.getProperty("bluetooth.connected.devices.max").

• Scalable 2D Vector Graphics API system properties

• Mobile 3D Graphics API system properties

• Security and Trust Services API (SATSA) system properties

  • For S60 devices

  • For Series 40 devices

• Location API system properties

• Advanced Multimedia Supplements API system properties

• Web Services API system properties

• Nokia UI API

For an example on using the system properties, see the SystemProperties example MIDlet.