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Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
1. Given:
1 0. 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
2. A MIDlet has registered a push connection in the PushRegistry and a connection notification is pushed to the device. Which two are true? (Choose two.)
A) If the MIDlet is NOT running, the Application Management Software starts the MIDlet.
B) If the MIDlet is in the paused state, the Application Management Software is responsible for any inbound notification requests.
C) Once a connection is registered in the PushRegistry, the Application Management Software is always responsible for any connections.
D) If the application is running, it is responsible for all I/O operations associated with the inbound connection.
E) The Application Management Software is always responsible for any inbound notification requests.
3. Click the Exhibit button.
Which two are true assuming this method is in a MIDlet? (Choose two.)
A) The Chocolate Prefs choice is never displayed to the user.
B) The text "You made a choice" is displayed immediately after the user makes a selection.
C) Anonymous inner classes must NOT be used as event handlers within a MIDlet.
D) The user can select more than one type of chocolate.
E) Compilation fails due to a problem with code related to event handling.
F) An exception occurs at runtime due to a problem related to the event handling code.
4. Given:
1 4. Canvas canvas;
1 5. // ...
2 4. canvas.repaint(10,10,20,20);
2 5. canvas.serviceRepaints();
What occurs when serviceRepaints() is called?
A) The application immediately calls the repaint() method.
B) The application blocks until the paint() method returns.
C) The application blocks until the repaint() method returns.
D) The application immediately calls the paint() method.
5. Given the MIDlet code:
1 1. public void startApp() {
1 2. Form f = new Form("hello");
1 3. Display.getDisplay(this).setCurrent(f);
1 4. System.gc();
1 5. System.exit(0);
1 6. f.append("foo");
1 7. }
What is the result?
A) The application runs, and foo prints to the current display.
B) The application runs, but line 15 is ignored.
C) The application runs without exception, but foo is not printed.
D) Compilation fails.
E) The application runs, but throws an exception at runtime.
Solutions:
| Question # 1 Answer: C,F | Question # 2 Answer: A,D | Question # 3 Answer: B,D | Question # 4 Answer: B | Question # 5 Answer: E |

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