Codetown ::: a software developer's community

Codetown is a software developer's community. It's a technical networking and educational group focused on software development.


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Blog Posts

Secrets of the Rock Star Programmers

Posted by Michael Levin on July 13, 2018 at 10:29am 2 Comments

Wow, I must say that Ed's presentation last night was one of the best in the history of this group! Why? Ed recorded his interviews with the rock stars and played them as he went through the talk. Cool!

That meant we got to hear the voices of rock stars like James Gosling as…


Great Intro to Reactive Programming

Posted by Michael Levin on May 24, 2018 at 3:12pm 0 Comments

I’m told this is a great intro to reactive programming. So of course, I intend to read it! Here it is:


Photofeeler is a fun way to learn about logic

Posted by Michael Levin on May 15, 2018 at 10:00am 0 Comments

you haven’t checked it out already, take a look at Read about it’s logic. It’s fascinating! Stay tuned for more. I’m blogging form my iPhone!

There's a new Java Ecosystem Survey...

Posted by Michael Levin on May 14, 2018 at 3:30pm 0 Comments

This Java ecosystem survey is both informative and will be useful to many people. Please fill it out if you have the time.


Next OJUG and GatorJUG Meetings will be fabulous - Check out the Codetown Events

Watch for details on our upcoming meetings. OrlandoJUG meeting's fall on the 4th Thursday of every month, in case you want to mark your calendars. Stay tuned for details! GatorJUG meets the 2nd Wednesday of every month.

The details are posted in the CodeTown Events section. Please RSVP so we'll know how much pizza to order. Stay tuned! ...Mike



Error trying to use Fragment

I am new to Android.  I have been working thru some examples in a book called  Head First Android Development.  I entered a small program using fragments and get a Casting Error.cannot cast to…Continue

Tags: Fragment

Started by Robert Sobol in Java Oct 10, 2017.

Fragment Syntax Problem

My name is Rob Sobol.I have been working through a book called Head First Android Development.I hit a syntax error in a simple exercise that uses one fragment. I have been trying to figure out the error for days.  I am hoping some in the forum can…Continue

Tags: Fragments

Started by Robert Sobol in Java Oct 10, 2017.

Hadoop getting old?

An article just came out in InfoWorld about trends, which is always an interesting subject. Funny, they said Hadoop wasn't hot. Spark is. It's a good read. …Continue

Tags: codetown, infoworld, programming, hadoop, trends

Started by Michael Levin in Trends Apr 10, 2017.

What's functional programming, anyway?

Can you believe people are still trying to come up with a good definition or explanation of what functional programming is? Paul Krill is a journalist with InfoWorld. Here's an article he just wrote: …Continue

Tags: functions., codetown, lambdas, clojure, programming

Started by Michael Levin in Functional Programming Feb 21, 2016.

Santafe College 2 Replies

Santafe just added a new BAS  bachelor's program of study. 5651  ProgrammingContinue

Started by Dan Lackey in Dynamic Languages. Last reply by Michael Levin Feb 15, 2016.

Using SQL with Node,.js 1 Reply

All the tutorials and books for node.js seem to use Mongo as the database.  I am not sold on 'document' databases and would like to know how difficult it is to use any version for plain old tried-and-true SQL with Node.js.Does anybody have any…Continue

Tags: 'document, databases', SQL, node, node.js

Started by Kevin Neelands in Dynamic Languages. Last reply by Lou Caudell Nov 10, 2015.

The advantages of a RESTfull web-based API 5 Replies

I need to get a better handle on the advantages of a RESTful web-based API.  People tell me they scale better than other methods, but I don't see how they reduce database access or have any other feature that helps handle large amounts of traffic.…Continue

Tags: API', 'web-based, RESTful

Started by Kevin Neelands in Dynamic Languages. Last reply by Kevin Neelands Oct 25, 2015.

Java books for any library 4 Replies

What books should be on the bookshelf of EVERY Java programmer, no matter what specific technologies they are working on?The two that come to my mind areThinking in JavaJava Concurrency in PracticeWhat else am I missing?Continue

Started by David Moskowitz in Java. Last reply by Eric Nissan Aug 13, 2015.

Want a Job? 1 Reply

Hi, Not sure if this is the appropriate place to post this sort of things (forgive me if its not). My company (really nice company btw) is looking to hire two junior and two senior Java Developers. Please forward me your resume to…Continue

Started by Saad Laassel in Java. Last reply by Theresa Wizorek-MacIntyre Oct 15, 2014.

Storing Sensitive Data ( like SSNs ) 1 Reply

We might have to store Social Security Numbers.  We REALLY don't want to do this in our own database, we'd like some external 'vault' service that stores them encrypted and getting to them is difficult.  Does anyone have any ideas along these lines?Continue

Started by Kevin Neelands in Java. Last reply by Michael Levin May 7, 2014.


Latest Activity

Michael Levin added a discussion to the group OrlandoJUG Town
Michael Levin left a comment for Niteoul
"You'll want to join the OrlandoJUG Town group, too! That way, you'll get email about new meetings and you'll meet the locals. You'll be able to interact with them and share info about software development. Best way to learn."
Michael Levin left a comment for Niteoul
"Welcome to Codetown. "
Niteoul is now a member of Codetown
Michael Levin commented on Michael Levin's group OrlandoJUG Town
"OrlandoJUG meets every 4th Thursday from 6-8PM. Details about our next meeting are here: Please RSVP so we’ll know how much pizza to order.  If you want to get email about meetings, join this…"
Michael Lucas posted an event

AITP-NCFL July Presentation at ITProTV

July 24, 2018 from 6pm to 8pm
AITP-NCFL member Don Pezet of ITProTV presents the true story of how ITProTV mitigated a Distributed Denial of Service attack against their online resources.  Reserve today!See More
Ramya Beesam replied to Michael Levin's discussion August Ojug Topics - You choose! in the group OrlandoJUG Town
"RESTless Microservices and Event Driven Architecture"
Michael Levin posted an event

Orlando Java User Group at TBA

August 23, 2018 from 6pm to 8pm
Join us this month for an interesting presentation from a list of choose! Check out the OrlandoJUG Town group here at Codetown for a list of potential topics or the Meetup group to vote. Thanks to Red Hat for sponsoring pizza & beer :-)The front door locks…See More
Michael Levin left a comment for D R
"Hi D R and welcome to Codetown! "
D R is now a member of Codetown
Mandela Zabulungi joined Michael Levin's group


Python. Life's better without braces.
Michael Lucas left a comment for Michael Levin
"Thank you MIchael!"
Michael Levin left a comment for Andrei Nazariev
"Happy birthday, Andrei!"
Rafael Benevides shared Michael Levin's group on Facebook
Michael Levin commented on Michael Levin's blog post Secrets of the Rock Star Programmers
"That’s right! A repeat perfirmance would be great!"
Ed Burns commented on Michael Levin's blog post Secrets of the Rock Star Programmers
"Apparently the 2nd Thursday of the month is a big day for evening group meetings, so the attendance could have been better.  So, I'm very open to giving the talk again if it the opportunity arises. "
Ed Burns liked Michael Levin's blog post Secrets of the Rock Star Programmers
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Calling all Java lovers! The OrlandoJUG features leading edge presentations with you in mind. We meet every month with talks on interesting aspects of programming in Java. Although we're Java-focused, you'll also learn about other JVM languages.Twitter & Facebook @orlandojug Check the Codetown Events section for specifics about meetings.See More
Ramya Beesam left a comment for Michael Levin
"Thank you Mike for making me a part of this group. I feel very welcomed. Looking forward to learn and share!"
Ramya Beesam and Michael Levin are now friends


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…

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

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.


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Reading List

Article: Q&A on the Book Testing in the Digital Age

The Book Testing in the Digital Age by Tom van de Ven, Rik Marselis, and Humayun Shaukat, explains the impact that developments like robotics, artificial intelligence, internet of things, and big data are having in testing. It explores the challenges and possibilities that the digital age brings us when it comes to testing software systems.

By Ben Linders

Presentation: Effective Java, Third Edition - Keepin' it Effective

Joshua Bloch covers some highlights from the third edition of “Effective Java”, concentrating on streams and lambdas. The recently released edition of Effective Java contains one new chapter, fourteen new items, and numerous changes to existing items.

By Joshua Bloch

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