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Oracle 1Z0-869 Exam Syllabus Topics:

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

1. A MIDlet that is to be installed on a phone has different values for the MIDlet-Name property between the JAD file and the manifest in the JAR file. Which is true?

A) The value in the manifest overrides the value in the JAD file.
B) The MIDlet installation process will be aborted.
C) A dialog is presented to resolve the conflict.
D) The value in the JAD file overrides the value in the manifest.

2. Given the MIDlet code:
1 0. //...
2 0. try {
2 1. Connection conn = Connector.open("http://www.sun.com");
2 2. InputStream is = conn.getInputStream();
2 3. //...
3 0. } catch (IOException e) {
3 1. //...
4 0. }
Which is true?

A) The system returns a null InputStream.
B) The system returns a valid InputStream for reading.
C) An exception is thrown at runtime.
D) Compilation fails.

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

4. Given:
1 . import javax.microedition.midlet.*;
2 . public class Foo extends MIDlet {
3 . public void go() {
4 . try {
5 . doStuff();
6 . } catch(java.lang.NoClassDefFoundError e) { }
7 . }
8 . void doStuff() { }
9 . public void destroyApp(boolean b) { }
1 0. public void pauseApp() { }
1 1. public void startApp() {go();}
1 2. }
Assuming the application is targeted for CLDC 1.1, what is the result?

A) Compilation fails because of a problem in line 8.
B) Compilation succeeds.
C) Compilation fails because of a problem in line 6.
D) Compilation fails because the class does not contain the required method implementations.

5. Assume a device supports datagrams and a MIDlet has permission to use datagram connections. Which two are true? (Choose two.)

A) Push registration can fail because the device does NOT support the use of datagrams by the PushRegistry.
B) Push registration can fail if the allowed sender filter specified is *, which poses a security risk to the device.
C) Push registration can fail if there is a push registration conflict, but the user must be prompted as to how to resolve the problem.
D) Push registration can fail if another application has already reserved the connection on the device.

Solutions: