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Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:

1. Which method in Canvas is overridden in GameCanvas?

A) flushGraphics()
B) flushGraphics(int, int, int, int)
C) getGraphics()
D) getKeyStates()
E) paint()

2. Which is true about the installation status report definition?

A) A MIDlet suite CANNOT be removed until the installation notification has been successfully sent and the acknowledgement has been received.
B) The only protocols supported for the status report notification are HTTP and UDP.
C) In response to an installation status report, the server must reply with a 200 OK. HTTP acknowledgement response.
D) If the installation status report CANNOT be sent, the device must refuse the installation of the MIDlet suite.

3. Given: 10. MessageConnection connection;
1 1.
1 2. public void startApp() {
1 3. //...
1 4. connection
1 5. = (MessageConnection) Connector.open("sms://:6222");
1 6. connection.setMessageListener(this);
1 7. // ...
2 8. }
2 9.
3 0. public void notifyIncomingMessage(MessageConnection conn) {
3 1. //...
4 0. }
4 1.
4 2. public void run() {
4 3. Message msg = conn.receive();
4 4. //...
6 0. }
Which two security permissions must this application request to be able to receive messages? (Choose two.)

A) javax.microedition.io.Connector
B) javax.microedition.io.PushRegistry
C) javax.wireless.messaging.sms.receive
D) javax.wireless.messaging.sms.PushRegistry
E) javax.wireless.messaging.sms.listener
F) javax.microedition.io.Connector.sms

4. Which two are true for List? (Choose two.)

A) You can add Command objects to a List without registering a CommandListener.
B) Images and text in a List CANNOT be changed once the List is created.
C) A CommandListener must be registered for the application to recognize user selections in a List.
D) Traversing and scrolling in a List causes events that can be programmatically detected.

5. Given:
3 9. Image image = Image.createImage(20, 20);
4 0. Graphics g = image.getGraphics();
4 1. g.setColor(0xFF0000); //RED
4 2. g.fillRect(0, 0,
4 3. 20, 20);
4 4. Alert alert= new Alert("WARNING!");
4 5. alert.setImage(image);
4 6. g.setColor(0x000000); //BLACK
4 7. g.fillRect(0, 0,
4 8. 20, 20);
What is the result when the Alert is shown?

A) A black square is shown on the Alert.
B) Either a red square or a black square is shown depending on the implementation.
C) A red square is shown on the Alert.
D) A runtime exception is thrown.

Solutions: