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

1Z0-869 real exams

Exam Code: 1Z0-869

Exam Name: Java Mobile Edition 1 Mobile Application Developer Certified Professional Exam

Updated: Jul 31, 2026

Q & A: 340 Questions and Answers

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Oracle 1Z0-869 Exam Syllabus Topics:

SectionObjectives
Java ME Architecture and Fundamentals- MIDP (Mobile Information Device Profile)
- CLDC (Connected Limited Device Configuration)
- Java ME platform architecture overview
Packaging and Deployment- JAR/JAD packaging
- Deployment to mobile devices
MIDlet Development- MIDlet lifecycle
- User interface components and event handling
Security Model- Signed MIDlets and trust levels
- Sandbox model and permissions
Data Storage and Persistence- Record Management System (RMS)
Networking and Communication- Generic Connection Framework (GCF)
- HTTP/HTTPS connections in Java ME

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

1. A JTWI application sends a text message using the code:
message.setPayloadText("hello world!");
conn.send(message);
What exception will this code throw if a timeout occurs while trying to send the message?

A) java.io.EOFException
B) java.io.InterruptedIOException
C) java.lang.SecurityException
D) java.lang.NullPointerException


2. The developer is designing a game that uses the LayerManager and Sprite classes. Three Sprite objects are added to a LayerManager object and a call is placed to the LayerManager.paint(Graphics, x, y) method. In what order are the Sprite objects rendered to the device display?

A) The Sprites are rendered in a random order.
B) The Sprites that are animated are rendered first.
C) The Sprites are rendered in an implementation specific manner.
D) The Sprites are rendered in order of descending index.


3. 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 blocks until the paint() method returns.
B) The application immediately calls the paint() method.
C) The application blocks until the repaint() method returns.
D) The application immediately calls the repaint() method.


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

A) In class A, no new events will be delivered to the application until after the commandAction() method completes.
B) The commandAction() method code in class A is NOT guaranteed to be portable across all MIDP 2.0-compliant devices.
C) The event-handling mechanism in class A allows multiple command events to be delivered to the application in parallel.
D) The commandAction() method code in class B is compliant with the event-handling approach recommended in the MIDP 2.0 specification.
E) The event-handling in class A will NOT print done with action until after the run() method has completed.
F) In class B, no new events will be delivered to the application until after the commandAction() method completes.


5. Which three dimensions of a standard-size application does the JTWI 1.0 specification define? (Choose three.)

A) JAR size
B) RMS data size
C) screen size
D) heap size
E) JAD size


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: A,F
Question # 5
Answer: A,B,E

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