Re: is class file backward compatible

Joe Sam,
Thanks for the advice. it makes a lot of sense. I am on the west
coast, so maybe I will check some user groups. My company is a member
of the local AS/400 user group, so maybe I should correspond with them
a bit more.

I have the Java syntax down and I write some classes for production,
but since I've just learned on my own I just get concerned with
writing bad code. I understand a little better each day with all the
great information on this and other lists though.

Lecture all you want in my opinion, it's nice to here from real
experience! That is the one complaint I too have about courses. You
learn great information, but not always how to "really" apply it.

As always, thanks for the info.

--
James R. Perkins

On 21/03/2009, Joe Sam Shirah <joe_sam@xxxxxxxxxxxxx> wrote:

Hi James,

When I said real-life oriented classes, I meant trying to find classes
led by people who are field practitioners, rather than full time
instructors.

As to real life code, probably your best bet is finding an open source
project that is widely used. The problem with "real life code" seen on most
forums is that it has some problem (that's why it's on the forum: looking to
be fixed) and may not be the best thing for an example.

You may find some local non-profit to which someone has donated code
that may let you review for some service. Again, the issue is that a
relative newbie may not be able to judge what is good code and what is not.

While I would encourage anyone to take the courses available at
javapassion.com, and Sang Shin is certainly a knowledgeable and able
speaker, I'm not sure that the projects immediately classify as real life
models. I'm not running them down at all; almost any class is going to
focus on specific issues rather than an organic whole.

The best arenas should be JUGs and AS/400 user groups, but those
generally are pretty much in trouble. I'm on lots of lists and most, except
for a few on the west coast, have very little activity.

One of the unfortunate truths is that many Java programmers have just
focused on frameworks, event-driven models and API's . I've seen code,
especially from offshore groups, that hardly classifies as modular, much
less OOPS.

Sorry, this begins to sound like a lecture, so I'll cut it short: Look
to classes, articles and tutorials by writers who also do field work. Check
widely used open source projects. Check successful local projects, if
possible.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
Going International? http://www.jguru.com/faq/I18N
Que Java400? http://www.jguru.com/faq/Java400

----- Original Message -----
From: "James Perkins" <jrperkinsjr@xxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Friday, March 20, 2009 7:51 PM
Subject: Re: is class file backward compatible


Joe Sam,
Just out of curiosity, do you have any suggestions on where one could learn
real-life Java? I know there are tons of examples to do just about anything,
but I would love to see some good production code. Nothing big, just a small
maybe order entry code or something simple, but complete.

Probably nothing out there for free as I am doing this on my own, but
thought I would at least check. I've thought about taking a course at
javapassion.com, but haven't done it yet.

Thanks in advance,
--
James R. Perkins


On Fri, Mar 20, 2009 at 11:38, Joe Sam Shirah <joe_sam@xxxxxxxxxxxxx> wrote:

Now, for a newbie Thread.destroy() sound like a
logic choice to terminate a thread hehehe.

Not to mention Thread.run() :)

These kinds of things, and many others, are reasons I usually advise
shops that are just starting Java to bring in a trusted, knowledgeable
resource, and take some real-life oriented classes if possible. Instead,
it's often "it's just another language, gotta code, gotta code."

One local company was so disgusted that I wanted to teach fundamentals
in an on-site class series that they cancelled after three sessions in
favor
of straight ahead coding. My own estimation is that decision has cost
them
at least a quarter million dollars (people working there have larger
estimates) while their users suffered, and continue to suffer, from those
early attempts.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
Going International? http://www.jguru.com/faq/I18N
Que Java400? http://www.jguru.com/faq/Java400

----- Original Message -----
From: "Thorbjoern Ravn Andersen" <ravn@xxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Friday, March 20, 2009 2:13 PM
Subject: Re: is class file backward compatible


Lim Hock-Chai skrev:

Thanks Joe. Well put. Now, for a newbie Thread.destroy() sound like a
logic choice to terminate a thread hehehe.

Not to mention Thread.run() :)

--
Thorbjørn Ravn Andersen "...plus... Tubular Bells!"

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