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GatorJUG Town

Gainesville JUG, this is your place. Gather here to network, trade tips and ideas, or ask questions. You can create discussions and upload code. Check the Codetown Events section for meeting info.

Location: Gainesville, FL
Members: 30
Latest Activity: Jul 21, 2019

GatorJUG Town

Shale boulders

Hello, GatorJUG!

Welcome to your new home on the web. This is going to be a much more sociable place to get together - virtually. www.gatorjug.org, points here now. Check the Codetown Events section for meeting info.

Meanwhile, take a look around CodeTown while you're here. This framework is Java-based with a PHP front end. We've got many groups here to peruse. Our meetings will be listed in the Events section.

Have fun!

All the best,

Michael Levin

Discussion Forum

J4K Conference —- here’s a code for free admission!

OrlandoJUG is a community partner for the J4K conf @ Hilton Buena Vista Orlando 7/30 Use code J4KREG for free admission www.j4k.io See you there!Continue

Tags: J4k

Started by Michael Levin Jul 21, 2019.

OSCON raffle!

Hello Juggies!Have you ever been to OSCON? It’s the O’Reilly Open Source Conference. If you have, you wanna go back! If not, you wanna go!OSCON is arguably the best open source conference around. It’s in Portland, OR (awesome city), July 15-18 and we are lucky to have one ticket to raffle off!Flights are cheap. Check Southwest. Places to stay are abundant. Great hostels and hotels, Airbnb’s and more. Public xport is easy. It’s a bicyclist’s dream, too.OSCON has great sessions on everything from languages to operating systems, architecture to project management. There’s an expo with loads of companies and it’s also a good place to network for jobs and staff.After hours is also a blast with happy hours, activities like a fun run, more!If you’re interested in checking it out, http://www.oscon.com is the URL. You also get access to Safari, the online book library.All in all, it’s the best educational and social experiment I know of, and if you want to…Continue

Started by Michael Levin May 31, 2019.

O'Reilly Open Source Convention | July 16–19, 2018 | Portland, Oregon

O'Reilly Open Source Convention | July 16–19, 2018 | Portland, Oregon OSCON didn’t get to be the longest running software conference by accident. Developers, engineers, and business leaders like you who build and support transformative technologies make OSCON the heartbeat of the movement. Join us in Portland July 16-19 for our 20 year anniversary for perspective on the decisions that strengthen and grow companies, deep knowledge of the technology to make it happen, and access to a community that can help both you and your organization thrive.Save 20% on most passes with discount code USRG. Link: http://www.oreilly.com/pub/cpc/125414Continue

Tags: codetown, oscon

Started by Michael Levin Jun 15, 2018.

New jobs in Tampa

Hey y'all!There are 2 new jobs posted in the Jobs group. These are contract to hire and they look great. Check 'em out. Best,MikeContinue

Started by Michael Levin Jun 13, 2018.

Reading List ::: from JavaSpecialists

Issue 281 - Puzzle 2: Is it garbage?

In our next puzzle, we up the ante a bit. We prevent GC during the test() method by storing a strong reference to all our Vectors. Cock and bull story, or are we struggling to identity our biases?

Issue 280 - Puzzle: What's up with Vector?

For today's puzzle, we are getting elements from Vector, sequentially and in parallel. But why is the performance so much worse in Java 15-ea+28?

Issue 279 - Upgrading ReadWriteLock

The Java ReentrantReadWriteLock can never ever upgrade a read lock to a write lock. Kotlin's extension function ReentrantReadWriteLock.write() cheats a bit by letting go of the read lock before upgrading, thus opening the door for race conditions. A better solution is StampedLock, which has a method to try to convert the lock to a write lock.

Issue 278 - Free Memory

How much memory was wasted when an additional boolean field was added to java.lang.String in Java 13? None at all. This article explains why.

Issue 277 - Strings with Zero HashCode

In Java 2, the computational time complexity of String#hashCode() became linear, as it used every character to calculate the hash. Java 3 cached the hash code, so that it would not need to be recalculated every time we called hashCode(), except in the case that the hash code was zero. Java 13 finally fixes that inefficiency with an additional boolean field.

Comment Wall

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Comment by Michael Levin on May 8, 2015 at 1:09pm

GatorJUG meets on the 2nd Wed every month from 6-8PM. Details at http://www.codetown.com/events

 

Members (30)

 
 
 

Happy 10th year, JCertif!

Notes

Welcome to Codetown!

Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
Continue

Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

Looking for Jobs or Staff?

Check out the Codetown Jobs group.

There's also a free Java Jobs mailing list. It's a Yahoo group so you have to create a Yahoo account to use it.

 

Enjoy the site? Support Codetown with your donation.



InfoQ Reading List

Presentation: Turnkey Multi-region, Active-Active Session Stores with Steeltoe, Redis Enterprise, and PAS

Adi Foulger provides insights into the Redis Enterprise architecture and demos active/active Redis clusters across two geo-distributed Pivotal Platform foundations.

By Adi Foulger

Presentation: Reactive Event Processing with Apache Geode

Bill Burcham discusses how to integrate Geode with your Reactive System efficiently, and at scale.

By Bill Burcham

Pylance Is A New Python Language Server for Visual Studio Code

Microsoft has announced Pylance, a new language server for Python aimed to help programmers to write better Python code and to improve IntelliSense and Visual Studio Code support for the language. Pylance will eventually replace Microsoft Python Language Server.

By Sergio De Simone

Apple Rejects NFC, Bluetooth and 14 More Web APIs, Citing Privacy Reasons

In the frame of its tracking prevention policy, Apple recently communicated its current refusal to implement 16 web APIs citing privacy concerns. Apple emphasized that the decision could be reconsidered if the proposals evolve to reduce the fingerprinting attack surface.

By Bruno Couriol

Databricks Contributes MLflow Machine Learning Platform to The Linux Foundation

Databricks, the company behind big data processing and analytics engine Apache Spark, contributes open source machine learning platform MLflow to The Linux Foundation. The announcement was made at the recent Spark AI Summit 2020 Conference which was held as a global virtual event.

By Srini Penchikala

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