The code samples show you how the sample application uses the Push Service APIs of the BlackBerry Java Development Environment to perform the following actions:
- Implement the PushApplication interface.
- Register to receive push messages.
- Receive a push message.
- Acknowledge the receipt of a push message.
- Issue a notification to the user when new content arrives.
- Unregister to stop receiving push messages.
- Automatically detect a changed SIM card on the device.