Command. holbrook-ne.command(commandObj); holbrook-ne.commandListener(this); The this keyword refers to the current CommandListener interface that the class is currently implemented. This interface has a special method named commandAction. In this method you can write code to response to the command action. The commandAction() method is typically invoked in the context of the thread that is responsible for managing the user interface and therefore any delay caused by this method may cause the user interface to appear to be unresponsive. An application will provide an implementation of a CommandListener (typically by using a nested class or an inner class) and will then provide the instance to the addCommand method on a Displayable in order to receive high-level events on that screen. The specification does not require the platform to create several threads for the event delivery.
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