This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
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Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
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This week's giveaway!

Thomas Paul
mister krabs
Ranch Hand

Joined: May 05, 2000
Posts: 13974
Please give a big welcome to Jack Shirazi, author of "Java Performance Tuning" who is joining us for the rest of the week. Jack will be answering your questions about his book and about performance tuning in general.
On Friday we will be giving away four copies of Jack's excellent book. All on topic posts between now and Friday will be eligible to win a copy.
Our reviewer (me) gave the book an excellent rating of 9 horseshoes and had this to say, "Java Performance Tuning is a programmer's book. You are guaranteed to learn a lot of very neat and useful tricks. I doubt that there is another Java book on the market with as many "WOW!" moments in it."
Posts in this thread will not be eligible so say hi to Jack here and then start a new thread to ask Jack your questions.

Associate Instructor - Hofstra University
Amazon Top 750 reviewer - Blog - Unresolved References - Book Review Blog
Vedhas Pitkar
Ranch Hand

Joined: Jan 27, 2001
Posts: 445
Looking forward to winning this book too!
Sumit Amar
Ranch Hand

Joined: Jun 08, 2002
Posts: 180
Hey Jack, it's great to know about a book on Java Performance Tuning. because that has always been a controversial issue for me.

SCJP, SCWCD, OCA, OCP-DBA 9i, <a href="" target="_blank" rel="nofollow">BCIP</a>, MCP, MCAD, MCSD.NET, MCDBA, MCTS (SQL 05), MCITP (DBD, DBA)
Balaji Munuswamy
Ranch Hand

Joined: Apr 07, 2002
Posts: 37
Hi Jack,
Nice meeting you !!!
Surendran Velath

Joined: Apr 23, 2003
Posts: 19
Hi Jack,
It's nice to hear about your book
Java Performance Tuning
I've always wanted to get my hand on a good book on Performance tuning. It will be of great help to programmers in Java.
Sun Certified Programmer for Java 2
Sanjay Jadhav
Ranch Hand

Joined: Feb 21, 2002
Posts: 86
Hi Jack,
Good to see u here.
I had questions for you.

1> How did the duplication of class loading make java perform slow ?
2> At what extend did the reusability of object is ok, or why not developer use cloned objects instead ?
3> Did you have any good example for jdbc connection pooling for server-side, can be use with servlet/jsp developded MVC model ?
4> how about cache more than 10000 records and putting it in session and make available all over the web application, and what will if i have 5 such cache which is in there respective session so in my current jsp i can access required data from those session (It is about e-commerce application on which im working).
5> Can i get sample chapters in pdf format from you book to get idea about your book.
with best regards,

Sanjay Jadhav<br />Sun Certified Programmer For Java 2 Platform
Jack Shirazi
Ranch Hand

Joined: Oct 26, 2000
Posts: 96
Hi everyone,
Good to be here again. I look forward to many interesting questions.
Sanjay, the posts in this thread are not eligible for entries to the book giveaway competition, so why don't you start a new thread posting your questions, and we'll deal with them there. That way you'll get a chance at winning a copy.
Anyone who hasn't heard of may want to check out the site. It covers a huge amount of Java performance information
--Jack Shirazi
Garrett Smith
Ranch Hand

Joined: Jun 27, 2002
Posts: 401
I am interested in winning your book. I have noticed that many of the principles apply also to javascript.
Local variables are fastest, string literal concatenation is faster than concatenating string variables (especially in mozilla).

I didn't buy your book because I am too poor. I just read in the book store.

comp.lang.javascript FAQ:
Dajin Sulman

Joined: Apr 28, 2003
Posts: 11
Hey there!
Nice to now that there is such a book outside, as I am a student with a slow comp and always interested in getting even a weenie-bit more performance out of my crap stuff. I hope my local dealer has got it soon for a quick look in the store.
Or maybe....
Daniel Ng

Joined: Jul 09, 2002
Posts: 27
Is there anything in the book about dealing with threads?
Jack Shirazi
Ranch Hand

Joined: Oct 26, 2000
Posts: 96
Ladies, Gentlemen, please post your questions in a new thread to give yourself a chance of winning a copy. Otherwise you are throwing your chance away, posts in this discussion thread, this page, are not eligible for entry to the giveaway competition.
--Jack Shirazi
Jim Yingst

Joined: Jan 30, 2000
Posts: 18671
Welcome back, Jack!

"I'm not back." - Bill Harding, Twister
Bruno Arantes

Joined: Apr 30, 2003
Posts: 24
I'm convinced that reading this book (and also following it's rules and practices) is a must-do for every java programmer.

Bruno Arantes Bueno.<br />Certified Lotus Specialist, SCJP 1.4.
Francis Siu
Ranch Hand

Joined: Jan 04, 2003
Posts: 867
hi Jack
Could you read the topic
Why the performance is improved in these ways?
thanks for your time to answer

Francis Siu
Sanjay Jadhav
Ranch Hand

Joined: Feb 21, 2002
Posts: 86
Hi Jack can u answerd my "Make the Java perform well (Java Performance Tunning)" thread.
I will be glad if i get the response to that

with best regards,
sanjay jadhav
Jack Shirazi
Ranch Hand

Joined: Oct 26, 2000
Posts: 96
Well, I'm afraid that I'm pretty much out of time here. I'll try to follow one or two threads if I can, but if I can't, it's been fun. Some great discussions.
Good luck all of you on winning a copy, and I wish you all success in your future careers.
--Jack Shirazi
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