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Revision as of 20:35, 9 October 2008 by extkbeditor1 (Talk | contribs)

How to check if a specific API is supported in Java ME

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Article Metadata
Tested with
Devices(s): Nokia N95 8GB
Keywords: java.lang.System, javax.microedition.lcdui.Alert, javax.microedition.lcdui.AlertType, java.lang.System.getProperty()
Created: (14 May 2008)
Last edited: extkbeditor1 (09 Oct 2008)


This code snippet demonstrates how to check whether a specific Java ME API is supported on the device and also what version is supported. In this snippet, the API to be checked is the Wireless Messaging API.

Note: The method System.getProperty() can also be used for obtaining several other properties than API versions. See TSJ000306 - MIDP: System properties for a list of possibilities.


import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Display;
String wmVersion = System.getProperty("wireless.messaging.version");
if (wmVersion != null) {
// Wireless messaging is supported. Inform the user.
Alert alert = new Alert("Supported",
"Wireless messaging is supported. Version is: " + wmVersion,
null, AlertType.INFO);
} else {
// Wireless messaging is not supported. Inform the user.
Alert alert = new Alert("Not supported",
"Wireless messaging is not supported.", null,


The MIDlet displays an alert which shows whether the Wireless Messaging API is supported and if yes, which version is supported.

See also

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