1Z0-869 Exam Details

  • Exam Code
    :1Z0-869
  • Exam Name
    :Java Mobile Edition 1 Mobile Application Developer Certified Professional
  • Certification
    :Oracle Certifications
  • Vendor
    :Oracle
  • Total Questions
    :340 Q&As
  • Last Updated
    :Jun 20, 2026

Oracle 1Z0-869 Online Questions & Answers

  • Question 121:

    Given

    10. // ...

    20.

    VolumeControl vc;

    21.

    vc = (VolumeControl) player.getControl("VolumeControl");

    22.

    vc.setLevel(4);

    23.

    // ...

    Which is true about the volume of audio playback from player when the code is executed?

    A. The volume of the audio is up to the MIDP device.
    B. The volume of the audio is exactly 40 dB.
    C. The volume of the audio is approximately 0.4 dB.
    D. The volume of the audio must be the same on all MIDP devices.

  • Question 122:

    Which two are true? (Choose two.)

    A. GameCanvas always needs a separate thread to draw anything on the screen.
    B. paint() is never called for GameCanvas subclasses.
    C. Canvas.serviceRepaints() and Canvas.callSerially() can be used to create a constant frame-rate animation loop.
    D. Synchronous painting to the device display is possible with GameCanvas.

  • Question 123:

    Which is true about the installation status report definition?

    A. A MIDlet suite CANNOT be removed until the installation notification has been successfully sent and the acknowledgement has been received.
    B. In response to an installation status report, the server must reply with a 200 OK. HTTP acknowledgement response.
    C. If the installation status report CANNOT be sent, the device must refuse the installation of the MIDlet suite.
    D. The only protocols supported for the status report notification are HTTP and UDP.

  • Question 124:

    Which two are true about deleting a record store? (Choose two.)

    A. Registered listeners will be notified when their record store is deleted.
    B. Permission to delete a record store is independent of its authorization mode.
    C. A record store can be deleted by any MIDlet that has access to it.
    D. A record store can always be deleted if it is NOT open to any MIDlet in its suite.
    E. Record stores accessible across MIDlet suites can never be deleted.
    F. Any attempt to delete a record store can throw an exception that must be caught.

  • Question 125:

    Which is true about PushRegistry.registerAlarm()?

    A. PushRegistry.registerAlarm() works independently of the network protocols available for push connections.
    B. JTWI devices may choose NOT to implement PushRegistry.registerAlarm().
    C. PushRegistry.registerAlarm() is overloaded to play audio file arguments.
    D. PushRegistry.registerAlarm() supports several outstanding activation times per MIDlet.

  • Question 126:

    Given:

    10. //...

    20.

    try {

    21.

    Hashtable table = new Hashtable();

    22.

    for (;;) table.put(new Object(), new Object());

    23.

    } catch (OutOfMemoryException e) {

    24.

    Display.getDisplay().setCurrent(new Alert("Out of Memory!"));

    25.

    }

    26.

    //... Which is true?

    A. Out of Memory! is printed to the system console.
    B. An exception is thrown at runtime but there is no guarantee an alert will be shown to the user.
    C. Compilation fails.
    D. The program hangs at line 22.

  • Question 127:

    Given:

    10.

    MessageConnection conn;

    11.

    12.

    public void startApp() {

    13.

    try {

    14.

    conn = (MessageConnection) Connector.open("cbs://:3382");

    15.

    //...

    17.

    } catch (Exception e) {

    18.

    //...

    20.

    }

    21.

    }

    22.

    30.

    public void run() {

    31.

    Message msg = conn.receive();

    32.

    //...

    40.

    conn.send(msg);

    41.

    }

    What is the result?

    A. An error at line 40 causes an exception at runtime.
    B. An error at line 14 causes compile to fail.
    C. An error at line 31 causes an exception at runtime.
    D. The code successfully sends a message.
    E. An error at line 14 causes an exception at runtime.

  • Question 128:

    Given the MIDlet code:

    3.

    public void go() {

    4.

    try {

    5.

    doStuff();

    6.

    } catch(java.lang.IllegalAccessError e) {

    7.

    aForm.append("An Error");

    8.

    }

    9.

    }

    Assuming the aForm variable on line 7 is a correctly initialized Form and set to the current display, what is the result?

    A. An Error is printed to the display if an IllegalAccessError occurs.
    B. Compilation fails due to a problem on line 7.
    C. The MIDlet fails at runtime due to a problem on line 6.
    D. The MIDlet fails at runtime due to a problem on line 7.
    E. Compilation fails due to a problem on line 6.

  • Question 129:

    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();

  • Question 130:

    Given a MIDlet suite with its JAD file and a device that:

    downloads and installs the JAD file

    loses the network service during the download of the JAR file

    What is the correct behavior of a JTWI-compliant device?

    A. The device installs the portion of MIDlet suite it has downloaded until that point.
    B. The server will push the MIDlet suite to the device the next time it has data network connectivity.
    C. The device will try again to download the JAR file the next time it has data network connectivity.
    D. The device aborts the installation and frees the space reserved for that MIDlet suite.

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