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Oracle 1Z0-869 Exam Syllabus Topics:

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

Question 1

Given:
5 0. class MyGameCanvas extends Canvas {
5 1. //...
6 0. public MyGameCanvas() {
6 1. int width1 = getWidth();
6 2. int height1 = getHeight();
6 3. //...
7 0. setFullScreenMode(true);
7 1. //...
8 0. int width2 = getWidth();
8 1. int height2 = getHeight();
8 2. //...
9 0. }
What is true about width1, height1 and width2, height2?

A. height1 is always equal to height2.
B. width1 is always equal to width2.
C. The call to setFullScreenMode() is ignored because the dimensions have already been set.
D. The system tries to provide maximum visible area to the MIDlet and these dimensions are width2, height2.

Question 2

Which two are true about MIDlet suite provisioning? (Choose two.)

A. A JTWI-compliant device must support HTTP authentication.
B. A JTWI-compliant device must support HTTP 1.1.
C. A JTWI-compliant device must support HTTP 1.1 and cookies.
D. A JTWI-compliant device must support HTTP 1.0.

Question 3

How are labels for Command objects displayed to the user?

A. The long label is only for description and is never displayed.
B. The short label is always available to view, while the long label may be displayed occasionally.
C. Both short and long labels are always available for the user to view.
D. The device shows either the short or the long label.

Question 4

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

Question 5

Which three statements are true regarding the handling of wireless connections? (Choose three.)

A. Network connections should never be performed on a separate thread, so problems can be handled quickly.
B. The connection could unexpectedly terminate while processing the input or output streams.
C. Performing network operations on the same thread used by the display is likely to block refreshes of the display until the network operations complete.
D. Devices can only support one HttpConnection at a time; therefore, network access from multiple threads must be serialized.
E. A network connection could interfere with other services on the device, such as the ability to receive phone calls or SMS on a phone.

Solutions: