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Jalal ud Din

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since Dec 20, 2006
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Recent posts by Jalal ud Din

Hi,
I done SCJP 5.0 several years ago. Now I am looking forward for OCJP 7.0. I am wondering is K&B's 6.0 book sufficient to pass the OCJP 7.0 exam? If no what are other good materials available (I am looking for minimal material to cover the exam only)
regards,
Jalal
Directory does already exist.
10 years ago
I am trying to create a file on a path which contains spaces in directory names. like I want to created a file at "c:\abc def\a.txt". File.createNewFile() throws the excpation that The system cannot find the path specified. Please help. Directory does already exist.

java version "1.6.0_16"

code looks like as follows.

10 years ago
Hi ranchers,
I given my part III exam on 8th of dec and uploaded the assignment a night before. Today I got the following score.

Grade: P
Score: 83
The maximum number of points you could have received is 100, minimum to pass is 70.
Class Diagram (44 maximum) .......................... 36
Component Diagram (44 maximum) ...................... 35
Sequence/Colloboration Diagrams (12 maximum) ........ 12

My solution was simple and stupid. I simply followed the Mark cade's solution. My solution almost only included diagrams, i added two three lines with each diagram. Only one class diagram with about 20 classes. There was no attribute mentioned in any class. Only five to six methods mentioned in few classes. I extended the class diagram from domain model and added the stateless session beans as services to the system. Component diagrams and sequence diagrams were also very simple. i added JSPs with servlets and stateless session beans etc. I used if else conditions as well in sequence diagrams to show alternate scenarios. I was not sure how can I show the security requirements in class diagrams and component diagrams. So I havn't shown any thing about security there.

I forcefully created three four assumptions just for the sake of creating assumptions.

I don't know where I lost points in class diagram and component diagrams but still I am very happy and relaxed after recieving the score.

I passed part1 in june 2007. I started working on assignment on 2nd of December and completed on 7th of december. I spent two to three hours daily and last day I spent more than 8 hours.

I am a silent reader of java ranch and it really helped me a lot. I can say that javaranch and mark cade's book was the primary resources for solving the assignment. Used StarUML for creating the UML diagrams. Initially I used Magic Draw Community Edition and it quickly became very annoying due to its pop ups and lack to support for showing the components similar way as shown in mark cade�s book.

Thanks ranchers for all the great help.

Jalal
13 years ago
I given the SCEA(old) part III exam last monday 8 december. When I was reviewing the comments the time was over. When i tried pressing the Next button it given me error message that your time is over and it just kicked me off with the message that result will be printed. I am wondering, did it accepted all the comments which I added before time was completed or not? is my part III for SCEA is considered complete and its marking in progress or not? I can't see any thing in cert manager. Please help. I already uploaded the assignment befoer the paper. I entered answeres of all four questions in comments field as instructed by exam.

In certmanager i can see the result of part I but nothing mentioned about part III yet after one week.

Any ideas?

Jalal
Hi,
I am thinking to avoid displaying any DAO and Entity beans in class diagram and follow the Mark Cade's book approach. Any comments? Did anybody submitted the assignment without displaying DAO's and entity beans in class diagram?

My second question is regarding the Swing client for travel agents. What are the pros and cons of directly hitting the EJB SLSB from swing application? Any suggested reads about it? Any suggestions about the patterens we can use to connect from Swing clients to SLSBs?

I am planning to submit my assignment in next few days. I appreciate any comments on this approach.

regards,
Jalal
[ December 03, 2008: Message edited by: Jalal ud Din ]
What is the best way to contact SUN officials for purchasing voucher. On which email I sould send the request. On website it says that vouchers purchased on this site can only be used in USA. I live in Pakistan. I can purchase 310 prefix based vouchers here.
Does any 310 prefix voucher will work for part II. Once voucher is purchased then what to do? Do I have to use it at prometric center?

regards,
Jalal
Hi,
I passed the part 1 with 87% today. Do I need to purchase a voucher first to download the assignment for part 2. Will 310 prefix voucher work for second part project? And which kind of vouchers are eligible for exam retake? if a voucher says that it will be valid from 16 April 2007 to 2008. is this voucher eligible for exam retake policy?
regards,
Jalal
Hi Mark,
Currently I am developing a client server application. Java client (A command prompt based application) reads some data from com ports and converts this data to xml. It keeps adding data in xml for 1 hour and after every one hour it streams xml or http to a servelet. Servlet analysis the data and updates the database accordingly. Another servlet (server side) can communicate to dos based application by sending him xml at any point of time depending upon the user clicks on web. this xml is sent to dos based application and dos based application converts it to com commands and sends it to some hardware.

Do you think above problem can be better solved using web services? how?

regards,
Jalal
14 years ago
Hi,
I am preparing for Part 1 of SCEA. I used Exforsys Inc simulator today and found lot of programming related questions, expression evaluations, syntax thinee etc. I am wondering are they really part of the exam. I don't think exam objectives list them.

regards,
Jalal
What Java technology/framework/api I should use to send xml to webserver?
14 years ago
Hi,
I am wondering does mock exams simulators are effective for SCEA part 1. If yes what are the best simulators. Any comparisons available?
regards,
Jalal
There are some tubewells operated in remote villages. Client want to monitor their current operation status on web. Idea is that electric motor status (speed, current and water pressure) statuses can be retrieved using some hardware cards and can be sent to a serial port. A computer will be installed on tube well site which will take this serial input an will convert this xml and can/amy use wap to send this xml to a web server. if You cobmbine this post with above post then it may clear the problem.
14 years ago