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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 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.

Issue 276 - Serializing Records

Java 14 Records (JEP359) reduce the boiler plate for simple POJOs. In this newsletter we look at what special magic is used to serialize and deserialize these new records.

Issue 275 - EnhancedStream with Dynamic Proxy

In our previous newsletter we enhanced Java 8 Streams by decorating them with an EnhancedStream class. The code had a lot of repetition, which often leads to bugs if written by hand. In this newsletter we use a dynamic proxy to create an EnhancedStream. The resulting code is shorter and more consistent.

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

After MS-DOS, Microsoft Now Open Sources GW-Basic

Microsoft released on GitHub the original 8088 assembly language sources for its interpreter for GW-BASIC 1.0, a dialect of the BASIC programming language released in 1983 and bundled with MS-DOS operating systems on IBM PC compatibles. After re-open-sourcing MS-DOS, Microsoft proceeds with releasing GW-BASIC under an MIT license due to numerous requests.

By Bruno Couriol

Presentation: Taming Large State: Lessons from Building Stream Processing

Sonali Sharma and Shriya Arora describe how Netflix solved a complex join of two high-volume event streams using Flink. They also talk about managing out of order events and processing late arriving data, exploring keyed state for maintaining large state, fault tolerance of a stateful application, strategies for failure recovery, data validation batch vs streaming, and more.

By Sonali Sharma, Shriya Arora

Presentation: Hallway Testing - Cool Face of Usability Testing

Ewa Marchewka discusses good practices in hallway testing, who and how should be involved, what projects can benefit from this technique, when to use it, what to avoid.

By Ewa Marchewka

Article: PHP 7 — Getting Started and OOP Improvements

PHP had become almost a forgotten language, with a lapse of more than 10 years without a new major version after PHP 5.0 in 2004. PHP 7.0 is a major version with several improvements and new features which have brought it to the level of other modern languages. In this series of articles, we shall discuss new features in the various PHP 7.x versions.

By Deepak Vohra

Predicting the Future with Forecasting and Agile Metrics

Common estimation approaches often fail to give us the predictability we want. Forecasting provides a range of possible outcomes with the chance of outcomes becoming reality. It can answer questions like “When will it be done?” or “What can we deliver by xx?” with confidence.

By Ben Linders

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