Instant Access Oracle 1Z0-869 Exam Premium Dumps - FreeCram

Preparing for the Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional exam on a tight schedule? FreeCram condenses the syllabus into 340 focused 1Z0-869 practice questions, so even a busy week can move you forward. In 2026, few candidates have months to spare, and this product is built for that reality.

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Oracle 1Z0-869 Exam: Frequently Asked Questions

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

Question 1

Given:
30. public boolean X(byte[] Y) throws IllegalArgumentException {
31. ByteArrayInputStream bais = new ByteArrayInputStream(arg);
32. DataInputStream dis = new DataInputStream(bais);
33. String type = null; 34. try {type = dis.readUTF();}
3 5. catch (Exception e) { }
3 6. return(Z);
3 7. }
Which substitutions for X, Y, and Z in the code create a valid implementation of RecordFilter that matches records whose type is NOT deleted?

A. X is match
Y is arg
Z is type.equals("deleted")
B. X is matches
Y is arg
Z is !type.equals("deleted")
C. X is matches
Y is type
Z is !type.equals("deleted")
D. X is match
Y is type
Z is !type.equals("deleted")
E. X is matches
Y is arg
Z is type.equals("deleted")

Question 2

Click the Exhibit button.
The application has a single Displayable object.
Which two are true? (Choose two.)

A. If Go is a Command object, it is possible that another device would map Go to a button on the device (as opposed to a menu list).
B. The Exit command must have been set with a priority equal to or greater than the priorities of commands Go, Foo, and Bar.
C. The program code did NOT necessarily specify the location of the Exit button.
D. In the MIDlet code, a Command object of type Command.MENU must have been created.
E. If Go, Foo, and Bar are all Command objects, each may have its own separate CommandListener object.

Question 3

Given:
1 . import javax.microedition.midlet.*;
2 . public class Foo extends MIDlet {
3 . public void go() {
4 . ThreadGroup x = Thread.currentThread().getThreadGroup();
5 . int numThreads = x.activeCount();
6 . Thread[] threads = null;
7 . x.enumerate(threads);
8 . }
9 . public void destroyApp(boolean b) { }
1 0. public void pauseApp() { }
1 1. public void startApp() { }
1 2. }
What is the result?

A. Compilation fails because of an error on line 7.
B. Compilation succeeds and the program runs without errors.
C. Compilation succeeds, but the program produces a runtime exception or error.
D. Compilation fails because of an error on line 4.
E. Compilation fails because of an error on a line other than 4 or 7.

Question 4

What is the result if a call to serviceRepaints() triggers a separate thread to invoke paint()?

A. The system may deadlock if the caller to serviceRepaints() holds a lock that is also needed by paint().
B. A deadlock always occurs.
C. An exception is thrown at runtime.
D. MIDP is thread-safe. There will never be a deadlock.

Question 5

Given the MIDlet code:
11. try {
1 2. while (true) {
1 3. ServerSocketConnection server = (ServerSocketConnection)
1 4. Connector.open("socket://:444", Connector.READ, true);
1 5. SocketConnection conn= (SocketConnection)
1 6. server.acceptAndOpen();
1 7. InputStream is = conn.openInputStream();
1 8. StringBuffer buffer = new StringBuffer();
1 9. for (int ch = -1; (ch = is.read()) != -1; ){
2 0. buffer.append((char)ch);
2 1. }
2 2. System.out.println(buffer);
2 3. }
2 4. } catch (IOException x) {}
Which two are true? (Choose two.)

A. The ServerSocketConnection is guaranteed to timeout at line 16 if there is no activity on the connection after a period of time.
B. The device may run out of connections.
C. An IOException could occur, causing the while loop to terminate.
D. The call to server.acceptAndOpen() on line 16 returns immediately if there is no activity on the connection.

Solutions: