Oracle 1Z0-869 Online Practice Questions and Exam Preparation

Oracle 1Z0-869 Online Questions & Answers

• Question 161:

  Click the Exhibit button. Given the GameCanvas code:

  10.

  public void run() {

  11.

  try {

  12.

  Graphics g = getGraphics();

  13.

  Image dog = Image.createImage("/dog.png");

  14.

  Sprite s = new Sprite(dog, 98, 88);

  15.

  s.setPosition(0,0);

  16.

  while (gameActive) {

  17.

  s.setFrame(0);

  18.

  s.paint(g);

  19.

  flushGraphics();

  20.

  s.setFrame(1);

  21.

  s.paint(g);

  22.

  flushGraphics();

  23.

  }

  24.

  } catch (Exception ex) {

  25.

  //...

  31.

  }

  32.

  }

  Assuming that gameActive is true, and that run() is called as a result of a new thread's start() invocation, what is the result?

  

  A. An exception is thrown at runtime because of an error with the arguments to the Sprite constructor.
  B. An IndexOutOfBoundsException occurs due to an error in line 17 or line 20.
  C. The dog on the left side of the image file appears on the display, but the dog on the right side is never seen.
  D. Compilation fails because Sprite does NOT have a paint(Graphics g) method.
  E. An animation appears that continuously cycles between the two versions of the dog.
  E. An animation appears that continuously cycles between the two versions of the dog.

• Question 162:

  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 is hidden from MIDlets and CANNOT be accessed.
  C. The manifest file can be accessed by any class using Class.getResourceAsStream().
  D. The manifest file can be accessed only by using MIDlet.getAppProperty().
  C. The manifest file can be accessed by any class using Class.getResourceAsStream().

• Question 163:

  Click the Exhibit button.

  Given a MIDlet suite with the JAD and the manifest files, what is the behavior of a JTWI- compliant device that tries to download the MIDlet suite?

  

  A. The device does NOT install the MIDlet suite because of an attribute mismatch.
  B. The device installs the JAD file, but does NOT install the JAR file.
  C. The device does NOT install the JAD file.
  D. The device installs the MIDlet suite.
  D. The device installs the MIDlet suite.

• Question 164:

  What is the area that the developer must paint when using CustomItem?

  A. CustomItem must paint the content area, its labels, and its border.
  B. CustomItem is limited to painting in the content area.
  C. The areas are unlimited. CustomItem may paint inside any area on the screen.
  D. CustomItem size is always honored by the system. Once created, the CustomItem always has this area to paint in.
  B. CustomItem is limited to painting in the content area.

• Question 165:

  Given:

  12.

  canvas.repaint(x1,y1,wd,ht);

  13.

  canvas.repaint(x2,y2,wd,ht);

  14.

  canvas.serviceRepaints(); Which two are true? (Choose two.)

  A. serviceRepaints() blocks waiting for paint() to return.
  B. paint() is called three times, once for each repaint() and once for serviceRepaints().
  C. paint() is always called twice, once for each repaint() request.
  D. If the two regions specified in repaint() overlap, repaint() may attempt to paint the union of the two areas.
  A. serviceRepaints() blocks waiting for paint() to return.
  D. If the two regions specified in repaint() overlap, repaint() may attempt to paint the union of the two areas.

• Question 166:

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

• Question 167:

  Given the JAD file fragment:

  MIDlet-1: Calendar, calendar.png, com.example.CalendarMIDlet

  MIDlet-2: Chat, chat.png, com.example.ChatMIDlet

  What CalendarMIDlet code launches ChatMIDlet at the time specified by variable chatTime?

  A. PushRegistry.registerAlarm("MIDlet-1", chatTime);
  B. PushRegistry.registerAlarm ("com.example.ChatMIDlet", chatTime);
  C. PushRegistry.registerAlarm("Chat", chatTime);
  D. PushRegistry.registerAlarm (Class.forName("com.example.ChatMIDlet"), chatTime);
  B. PushRegistry.registerAlarm ("com.example.ChatMIDlet", chatTime);

• Question 168:

  Given:

  MIDlet-Push-1: datagram://:444, com.fooworks.PushExample, *

  MIDlet-Push-2: datagram://:555, com.fooworks.PushExample, *

  are statically registered push connections and given:

  11.

  protected void startApp() {

  12.

  String[] connections = PushRegistry.listConnections(true);

  13.

  if(connections.length == 0) {

  14.

  connections = PushRegistry.listConnections(false);

  15.

  for (int i=0; i < connections.length; i++) {

  16.

  new DatagramHandler(connections[i]).start();

  17.

  }

  18.

  } else {

  19.

  for (int i=0; i < connections.length; i++) {

  20.

  new DatagramHandler(connections[i]).start();

  21.

  }

  22.

  }

  23.

  }

  Which two identify what will go wrong if the code is invoked by the Application Management

  Software in response to an inbound connection notification? (Choose two.)

  A. Duplicate DatagramHandler objects are created if the MIDlet is paused and then resumed.
  B. An IOException is thrown if there are no active connections.
  C. The first inbound datagram is handled, but all other datagrams are missed.
  D. Datagrams for the active connection are handled, but any datagrams sent to the other port are missed.
  E. The first inbound datagram is ignored, all subsequent datagrams are handled by DatagramHandler.
  A. Duplicate DatagramHandler objects are created if the MIDlet is paused and then resumed.
  D. Datagrams for the active connection are handled, but any datagrams sent to the other port are missed.

• Question 169:

  Given:

  RecordStore rs = null;

  static final String REC_STORE = "appdata"; And, the record store does NOT already exist.

  Which is the correct way to open the record store, requesting the record store be created?

  A. rs = RecordStore.openRecordStore(REC_STORE, true);
  B. rs = RecordStore.createRecordStore(REC_STORE);
  C. rs = RecordStore.openRecordStore(REC_STORE);
  D. rs = RecordStore.openRecordStore(REC_STORE, 1);
  E. rs = RecordStore.createRecordStore(REC_STORE, true);
  F. rs = RecordStore.createRecordStore(REC_STORE, 1);
  A. rs = RecordStore.openRecordStore(REC_STORE, true);

• Question 170:

  Which two guarantee a wireless message will be removed from the incoming message buffer by the Application Management Software? (Choose two.)

  A. The user denies permission to execute the application.
  B. The incoming message buffer is full.
  C. The message does NOT pass the filter defined in the connection URL.
  D. The application has processed the incoming message.
  C. The message does NOT pass the filter defined in the connection URL.
  D. The application has processed the incoming message.