Payal Shah

thank you..

I am not sure how it works in India b/c i did not apply from India. No idea how that works. You can do search here for other posts to see if anyone knows about this.

Good luck..sorry I wasn't much help.

My choice document is 20kb. I do not think the size matters. In my case I have put everything that I remember about my choice.

Example: I had the following in my choice doc b/c I wanted make sure that I justify my decision.

JAVADOC COCUMENTATION
-------------------------
I do have Javadoc comments for public, protected, default and private classes and members. I am only generating Javadoc for public classes and members for HTML/Javadoc documentation. Since given instructions.html did not say anything specific about this, I have made this choice for Javadoc generation.

LOGGING
-----------
I am using logging API throughout my application for debugging. I have left the logging code in all my classes so in the future when we enhance the application we can reuse it. I have turned off all logging to entire application before submitting the project. It can turn on easily by commenting first four lines in ApplicationRunner class's constructor.



Also, here is my table of contents:

1) OBJECT-ORIENTED DESIGN

2) USER INTERFACE

3) VALIDATIONS

4) EXCEPTIONS

5) RMI

6) 48 HOURS RULE

7) SHUTDOWN HOOK

8) ENCODING

9) MAGIC COOKIE

10)PRIMARY KEY

11)LOCK COOKIE GENERATION

12)LOCKING AND UNLOCKING

13)ASSUMPTIONS FOR GIVEN INTERFACE METHODS

14)LOGGING

15)JAVADOC COCUMENTATION


Hope this helps and good luck..

thank you.

I am planning to take Web Component Certification (SCWCD) exam.

Please suggest books if you know any good one.


Thank you

Thank you Roberto.

I forgot to post my score

Section Summary: Perfect Score
General Consideration: 100
Documentation: 70
OOD: 30
GUI: 40
Locking: 80
Data Store: 40
Network Server: 40
Total: 400

I was just hoping to pass the certification.

I just want to thank everyone who helped me to pass my SCJD certification. I could not have done without this website and everyone who took their valuable time to reply all my questions.

Special thank you to Roberto Perillo, Andrew Monkhouse, Alberto Ridolfi , Jeffry Kristianto Yanuar, Alexandre Baldo,Roel De Nijs, Cless Alvein K. Tisang , Bod Toki, Christian combarel, Mohamed sulibi for replying my post.

I took the exam while working full time and spent many hours in the library over the weekends. I am glad I did because hard work does pay off.

For those who are taking the exam right now, I just want to say good luck and everything you need to know is on this web site and in Andrew Monkhouse book.

Regards

I am trying to move my website from weblogic to tomcat. I have activex menu cotrol.

Activex control menu does not work in tomcat. When i view the source for that page and save it as html the menu shows up.

but when i try to view the jsp page , the menu does not get display. It looks like the source is there since it works fine as html file.
but some reason the menu does not get render in tomcat..

Any suggestions will help me..thank you

regards

that's what i do.

thank you..

Regards,

thank you Jeffry. i am guessing this might be daylight time issue.

regards

Hi Roberto

that was the case. by putting unlock in the finally section i make sure that record release the lock incase where there is an excpetion. I did the same thing when i did my test cases.

So is that ok if I put your unlock in finally section? I just want to make sure i do not have deadlock..

Thank you so much for sharing your test case..

regards.

I used the following to zip everything togather

jar -cf XXXXXXX.jar runme.jar db-1x3.db code version.txt docs

one thing i notice is that
db-1x3.db has original date modified = 4/8/2003 11:51AM
when jar, it changed to 4/8/2003 12:51PM

same thing to instruction.html..


The size is same..should i be worry or is there a way to make sure it does not change?

thank you

Hi Roberto,

this is what i found. When i run your test case it work some times but then I notice that your unlock method was not in finally section. If i move it to finally section, it works and I can run 1000 to 2000 threads..

Let me know what you think about that..this is what i did where i see unlock method.

private class UpdatingRandomRecordThread extends Thread { @SuppressWarnings("deprecation") public void run() { final Hotel room = new Hotel(); room.setName("Palace"); room.setLocation("Smallville"); room.setSize("2"); room.setSmoking("Y"); room.setRate("$150.00"); room.setDate("2020/02/02"); room.setOwner("54120584"); final int recNo = (int) (Math.random() * 50); long cookie =0l; try { System.out.println(Thread.currentThread().getId() + " trying to lock record #" + recNo + " on UpdatingRandomRecordThread"); /* * The generated record number may not exist in the database, so * a RecordNotFoundException must be thrown by the lock method. * Since the database records are in a cache, it is not * necessary to put the unlock instruction in a finally block, * because an exception can only occur when calling the lock * method (not when calling the update/delete methods), * therefore it is not necessary to call the unlock method in a * finally block, but you can customize this code according to * your reality */ cookie = data.lockRecord(recNo); System.out.println(Thread.currentThread().getId() + " trying to update record #" + recNo + " on UpdatingRandomRecordThread"); /* * An exception cannot occur here, otherwise, the unlock * instruction will not be reached, and the record will be * locked forever. In this case, I created a class called * RoomRetriever, which transforms from Room to String array, * and vice-versa, but it could also be done this way: * * data.update(recNo, new String[] {"Palace", "Smallville", "2", * "Y", "$150.00", "2005/07/27", null}); */ data.updateRecord(recNo, room.getRecord(), cookie); System.out.println(Thread.currentThread().getId() + " trying to unlock record #" + recNo + " on UpdatingRandomRecordThread"); // data.unlock(recNo,cookie); } catch (Exception e) { System.out.println(e); } finally { data.unlock(recNo, cookie); } } }

thank you.

I am very confuse

I just ran it again with the loop to run for 10. It works. It is very weird.. It works some time..I have tried with various loop count( 2,6,8,10) it work some times.

I am not sure..I am getting little nervous and scare now..

Also I notice this comment in the startTests method..

* Practically, it is not necessary to execute this loop more than 1
* time, but if you want, you can increase the controller variable,
* so it is executed as many times as you want

When i changed the loop to run only one instead of 10 times, I exit out in less than 1 sec.
for (int i = 0; i < 1; i++) { Thread updatingRandom = new UpdatingRandomRecordThread(); updatingRandom.start(); Thread updatingRecord1 = new UpdatingRecord1Thread(); updatingRecord1.start(); Thread creatingRecord = new CreatingRecordThread(); creatingRecord.start(); Thread deletingRecord = new DeletingRecord1Thread(); deletingRecord.start(); Thread findingRecords = new FindingRecordsThread(); findingRecords.start(); }

But when i run it i<10, i am stuck..

mine runs forever. I guess i have deadlock.. not sure..I am using Eclipse to run the test.

Is it possible that the test is done but main thread is running. do i need to set that as daemon thread.

if i do have deadlock,, how would go for that..


Thanks