Java Mobile Edition 1 Mobile Application Developer Certified Professional: 1Z0-869

Given:

15.

String addr = "sms://+14155557296";

16.

MessageConnection conn

17.

= (MessageConnection) Connector.open(addr);

18.

// insert code here

19.

message.setPayloadData(imageBytes);

Assume imageBytes is a valid byte array.

Which statement, inserted at line 18, causes the rest of the code fragment to compile correctly?

A. Message message = new BinaryMessage();

B. BinaryMessage message = (BinaryMessage) conn.newMessage(MessageConnection.BINARY_MESSAGE);

C. Message message = conn.newMessage(MessageConnection.BINARY_MESSAGE);

D. BinaryMessage message = new BinaryMessage();

Given:

21.

MessageConnection mc;

22.

mc = (MessageConnection) Connector.open("sms://:6222");

23.

mc.setMessageListener(this);

24.

reader = new MsgReader();

25.

new Thread(reader).start();

26.

//...

35.

public void notifyIncomingMessage(MessageConnection mc2) {

36.

//...

40.

}

41.

//...

50.

class MsgReader implements Runnable {

51.

//...

55. }

Which two are true? (Choose two.)

A. This MIDlet uses asynchronous WMA message handling.

B. This MIDlet must contain a call to PushRegister.registerConnection().

C. This MIDlet typically includes a method call such as: mc.receive().

D. This MIDlet must have a MIDlet-Push- entry in its JAD file.

E. This MIDlet uses synchronous WMA message handling.

The binding of networking protocols to a MIDlet at runtime can be compared to a type of relationship. Which relationship most closely matches the binding?

A. caller and callee

B. mark and sweep

C. application and device drivers

D. specification and implementation