Jeff McIlvain

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since Jan 24, 2001
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Recent posts by Jeff McIlvain

Recent project requires integration with MQ. We need to modify one of the APIs from our application to integrate with client's application via MQ. The integration requires the following:

External system calls our API. Our API needs to be modified to:

1. Produce MQ message to create object
2. Consume MQ message to validate creation of object
3. If response from #2 was success, produce new MQ message to create secondary object
4. Consume MQ message to validate creation of secondary object

Can 1-4 be coded within a single program or would we need multiple consumer/producer programs? Any guidance in terms of how this should be architected would be greatly appreciated.
12 years ago
We recently deployed a web application on WAS. The web app was purchased from a vendor. As part of the implementation we needed to integrate the web app with eDirectory LDAP services. In order accomplish that integration we developed a custom JAAS login module. We ended up using the vendor supplied Principal class in our JAAS module.

Our JAAS module is deployed to a shared library within WAS. When we first deployed the JAAS module we were getting NoClassDefFoundError. In order to resolved the issue we cracked open the web app EAR, extracted the JAR containing the vendor supplied Principal class, and deployed that JAR to the shared library.

My question is... Why did we have to deploy the vendor JAR to the shared library to make it work? Why couldn't it find the class in the JAR file that was deployed with the web app? Could we have done this differently without cracking open the EAR, extracting the JAR, and placing it in a shared library?

Thanks!!!
12 years ago
Don't worry about critiquing assignment 1.4 (Say) that I just sent. The spacing is way off. I realized it as soon as I sent it. I just started using Textpad so I've got some tweaking to do.
Thanks,
Jeff
23 years ago
Brian,
I meant to say substring() method. Sorry about the confustion.
Jeff
23 years ago
Neha,
When i run your program and input a single digit number I get


Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 2
at java.lang.String.substring(String.java:1489)
at Say.main(Say.java:3)


Also, when I input 30, 40, 50... I get Thirty-Zero, Forty-Zero, Fifty-Zero...

I'm new to Java, so I don't know if I'm doing something incorrect or not. If so could someone please correct me.
Thanks ~ Jeff

[This message has been edited by Jeff McIlvain (edited January 29, 2001).]
[This message has been edited by Jeff McIlvain (edited January 29, 2001).]
23 years ago
I'm having some difficulties deciding how to tackle the extra credit for assignment 1.4. Mainly I'm trying to decide what the four methods should be. Anyone have any clues or insight?
Thanks ~ Jeff
23 years ago
I'm having some difficulties with the style of my first assignment. As far as I can tell everything looks fine to me. I'm using Notepad for my editor. Could this be the cause of my problems? I'm using Hotmail to send my code. Could this be the problem? Please help!
Also which of these is correct:
Scenario 1

or
Scenario 2

How about these:
Scenario 3

or
Scenario 4

Thanks a bunch ~ Jeff
23 years ago
Do you use the subset() method for the extra credit, or is there another way. I just can't see an effecient way to achieve this without using the subset method.
Thanks ~ Jeff
23 years ago
I just received my first nitpick from assignment 1.1. One of the nitpicks says "Altogether 100 array dereferences and 100 string concatenations. Any room for optimization?" I'm not exactly sure what this means. Any suggestions or hints.
Thanks ~ Jeff
23 years ago
Thanks for input Bill, and best of luck on your exam on the 31st! Sounds to me like you'll pass that sucker easily.
Jeff
23 years ago
Thank for both of your replies Kavya! I sincerely appreciate the help and encouragement.
Jeff
23 years ago
I realize that I'll have lots of studying to do, and I've got a long way to go, but I was wondering based on other's past experience if once you successfully completed all the assignments in Cattle Drive you felt comfortable enough to start preparing for the SCJP?
Also, I'm just curious to know how long it's taken others to complete all the assignments in Cattle Drive. My goal is to become a SCJP by June. I'm trying to determine whether or not this is a realistic goal, or should I shoot for a later date?
Thanks ~ Jeff
23 years ago
I realize that I'll have lots of studying to do, and I've got a long way to go, but I was wondering based on other's past experience if once you successfully completed all the assignments in Cattle Drive you felt comfortable enough to start preparing for the SCJP?
Also, I'm just curious to know how long it's taken others to complete all the assignments in Cattle Drive. My goal is to become a SCJP by June. I'm trying to determine whether or not this is a realistic goal, or should I shoot for a later date?
Thanks ~ Jeff
23 years ago
Thanks Ryan! I'll check it out.
23 years ago
Thanks John! I appreciate it. I'm re-reading the Intro to Objects chapter in TIJ and it's starting to come to me. Your example helped even more. I'll get this stuff eventually.
Thanks again,
Jeff
23 years ago