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Oracle 1Z0-869 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Java ME Technologies | - Push Registry - CLDC 1.0 and 1.1 - MIDP User Interface API - MIDP Game API - MIDP Persistent Storage |
| Topic 2: JTWI and Wireless Application Overview | - JTWI (JSR 185) and Overview of JTWI-Compliant Wireless Applications |
| Topic 3: APIs and Specifications | - Networking - Wireless Messaging API 1.1 - Media Using MIDP 2.0 and MMAPI 1.1 - Security (CLDC and MIDP) |
Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
What are two benefits of the PushRegistry? (Choose two.)
- A. It provides a way for the AMS to automatically invoke a MIDlet at a specified time if it is not already running.
- B. It provides a way to restrict HTTP connections to well-known network addresses.
- C. It provides a way for two MIDlet suites running on the same device to discover and communicate with each other in a secure manner.
- D. It provides a way for an incoming connection to invoke a MIDlet that can handle the content sent by the connection.
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. For the two Sprite objects to be considered in collision, collidesWith() must be invoked on both objects.
- B. 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.
- 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.
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 server will push the MIDlet suite to the device the next time it has data network connectivity.
- B. The device installs the portion of MIDlet suite it has downloaded until that point.
- C. The device aborts the installation and frees the space reserved for that MIDlet suite.
- D. The device will try again to download the JAR file the next time it has data network connectivity.
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. CustomItem size is always honored by the system. Once created, the CustomItem always has this area to paint in.
- D. The areas are unlimited. CustomItem may paint inside any area on the screen.
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 succeeds and the program runs without errors.
- B. Compilation fails because of an error on line 4.
- C. Compilation succeeds, but the program produces a runtime exception or error.
- D. Compilation fails because of an error on line 7.
- E. Compilation fails because of an error on a line other than 4 or 7.
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