Free Oracle 1Z0-869 Practice Test & Real Exam Questions

Exam Code/Number: 1Z0-869
Exam Name/Title: Java Mobile Edition 1 Mobile Application Developer Certified Professional Exam
Certification Provider: Oracle
Corresponding Certification: Java Technology

Exam Questions: 340
Updated On: Aug 25, 2026

Question #1

Click the Exhibit button.
The method in the Exhibit must create an HTTP GET connection that works reading both of the following HTTP server response cases:
HTTP server response headers n.1
1 . HTTP/1.1 200 OK
2 . Server: MyServer/1.3.0
3 . Content-Length: 3245
4 . Content-Type: text/html
HTTP server response headers n.2
1 . HTTP/1.1 200 OK
2 . Server: MyServer/1.3.0
3 . Content-Type: text/html
Which two can be used in the fragment of code starting at line 12? (Choose two.)

A. 12. int ch;
1 3. while ((ch = is.read()) != -1) {
1 4. //...
2 0. }

B. 12. byte[] data = new byte[len];
1 3. int actual = is.read(data);

C. 12. if (len > 0) {
1 3. byte[] data = new byte[len];
1 4. int actual = is.read(data);
1 5. //...
2 0. } else {
2 1. int ch;
2 2. while ((ch = is.read()) != -1) {
2 3. //...
3 0. }
3 1. }

D. 12. int ch;
1 3. while ((ch = is.read()) == -1) {
1 4. //...
2 0. }

Discussion 0

Correct Answer: A,C Vote an answer

Question #2

Click the Exhibit button.
The red collision rectangle around each Sprite in the image is NOT part of the actual image. The two Sprite objects intersect in the application precisely as shown.
Which two are true? (Choose two.)

A. If Sprite 1 is being tested for collision with Sprite 2 using pixel-level collision detection, the two Sprite objects will NOT be in collision.

B. For the two Sprite objects to be considered in collision, collidesWith() must be invoked on both objects.

C. The most efficient way to detect collision is to use collision detection based solely on the collision rectangles.

D. For the two Sprite objects to be considered in collision, each Sprite must have no more than one frame.

Discussion 0

Correct Answer: A,C Vote an answer

Question #3

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. Performing network operations on the same thread used by the display is likely to block refreshes of the display until the network operations complete.

C. The connection could unexpectedly terminate while processing the input or output streams.

D. A network connection could interfere with other services on the device, such as the ability to receive phone calls or SMS on a phone.

E. Devices can only support one HttpConnection at a time; therefore, network access from multiple threads must be serialized.

Discussion 0

Correct Answer: B,C,D Vote an answer

Question #4

Which is true regarding access of the manifest file in a MIDlet suite's JAR file?

A. The manifest file can be accessed by only one authorized MIDlet in every suite.

B. The manifest file can be accessed only by using MIDlet.getAppProperty().

C. The manifest file is hidden from MIDlets and CANNOT be accessed.

D. The manifest file can be accessed by any class using Class.getResourceAsStream().

Discussion 0

Correct Answer: D Vote an answer

Question #5

Which two are true regarding error handling for classes that exist in both CLDC and J2SE?
(Choose two.)

A. There is no correspondence between the errors defined by CLDC and J2SE because the needs of CLDC and J2SE are so different.

B. The set of error classes is much reduced in CLDC to help reduce the overhead of the JVM.

C. The set of error classes is essentially the same in CLDC and J2SE.

D. If a class throws an error in CLDC, it should throw the same error as in J2SE or its nearest superclass.

Discussion 0

Correct Answer: B,D Vote an answer

Question #6

A MIDlet suite on a device uses socket connections. The device always asks the user for permission when the suite tries opening a socket connection. What is always false about the MIDlet suite?

A. It is trusted and requests permission to use sockets with MIDlet-Permissions-User.

B. It is trusted and requests permission to use sockets with MIDlet-Permissions-Opt.

C. It is trusted and requests permission to use sockets with MIDlet-Permissions.

D. It is untrusted.

Discussion 0

Correct Answer: A Vote an answer

Question #7

Assume a particular JTWI phone supports server socket connections. A MIDlet running on the phone attempts to register a connection using:
PushRegistry.registerConnection(connection, midlet, filter);
Assume connection, midlet, and filter are NOT null. The statement is executed and throws a ConnectionNotFoundException.
What causes the exception?

A. The requested connection is already registered.

B. The syntax of connection is invalid.

C. The specified MIDlet does NOT exist.

D. The phone does NOT support push connections using server sockets.

Discussion 0

Correct Answer: D Vote an answer

Question #8

DRAG DROP
Click the Task button. Place the MIDP 2.0 classes and interfaces in the correct positions in the hierarchy.

Discussion 0

Correct Answer:

Question #9

Click the Exhibit button. Which two are true? (Choose two.)

A. In class B, no new events will be delivered to the application until after the commandAction() method completes.

B. The commandAction() method code in class B is compliant with the event-handling approach recommended in the MIDP 2.0 specification.

C. The event-handling mechanism in class A allows multiple command events to be delivered to the application in parallel.

D. In class A, no new events will be delivered to the application until after the commandAction() method completes.

E. The event-handling in class A will NOT print done with action until after the run() method has completed.

F. The commandAction() method code in class A is NOT guaranteed to be portable across all MIDP 2.0-compliant devices.

Discussion 0

Correct Answer: A,D Vote an answer

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