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Oracle 1Z0-869 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: APIs and Specifications | - Security (CLDC and MIDP) - Networking - Media Using MIDP 2.0 and MMAPI 1.1 - Wireless Messaging API 1.1 |
| Topic 2: Java ME Technologies | - Push Registry - MIDP Game API - MIDP Persistent Storage - MIDP User Interface API - CLDC 1.0 and 1.1 |
| Topic 3: JTWI and Wireless Application Overview | - JTWI (JSR 185) and Overview of JTWI-Compliant Wireless Applications |
Oracle Java Mobile Edition 1 Mobile Application Developer Certified Professional Sample Questions:
1. Given a MIDlet that specifies a push registration in the JAD file as:
MIDlet-Push-1: socket://:79, com.sun.example.SampleChat, *
What is the result when the MIDlet is installed onto a device where another MIDlet has already registered the exact same push connection in the PushRegistry?
A) The MIDlet installs, but the MIDlet must register the connection dynamically.
B) The MIDlet installation is aborted and the user is notified of the problem.
C) The connection can only apply to the currently running MIDlet.
D) The MIDlet installs, but the connection CANNOT be used.
E) The MIDlet installs and overwrites any existing push registrations.
2. A MIDlet has entered the paused state. Which is a valid action to attempt to make it active?
A) The MIDlet cannot revert back to the active state.
B) The MIDlet has to wait quietly to be rescheduled.
C) The MIDlet calls resumeRequest() through a timer.
D) The MIDlet calls its own startApp() method.
3. Given:
1 . import javax.microedition.midlet.*;
2 . public class Foo extends MIDlet {
3 . public void go() {
4 . try {
5 . doStuff();
6 . } catch(java.lang.NoClassDefFoundError e) { }
7 . }
8 . void doStuff() { }
9 . public void destroyApp(boolean b) { }
1 0. public void pauseApp() { }
1 1. public void startApp() {go();}
1 2. }
Assuming the application is targeted for CLDC 1.1, what is the result?
A) Compilation fails because of a problem in line 8.
B) Compilation fails because of a problem in line 6.
C) Compilation succeeds.
D) Compilation fails because the class does not contain the required method implementations.
4. Which three dimensions of a standard-size application does the JTWI 1.0 specification define? (Choose three.)
A) heap size
B) JAD size
C) JAR size
D) RMS data size
E) screen size
5. 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) If the two regions specified in repaint() overlap, repaint() may attempt to paint the union of the two areas.
B) serviceRepaints() blocks waiting for paint() to return.
C) paint() is called three times, once for each repaint() and once for serviceRepaints().
D) paint() is always called twice, once for each repaint() request.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: B,C,D | Question # 5 Answer: A,B |
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