All Blog Posts (369)

Java One is a Wrap!

JavaOne 2015

Java One 2015 happened this week. There were so many interesting sessions you could nearly throw a dart at a dartboard with topics and go to the one you selected at random. For starters, here's a link to descriptions of the keynotes. And, you can check out the session descriptions …

Continue

Added by Michael Levin on October 31, 2015 at 2:45pm — No Comments

Data Science - Salaries and References

-

I'm currently looking into big data because it's very interesting to me.

Claire Corthell published a Data Science curriculum that is like an encyclopedia. …

Continue

Added by Michael Levin on October 31, 2015 at 2:00pm — No Comments

movie recommendations with Spark machine learning

Tutorial on Apache Spark, movie recommendations with machine learning 

This post discusses building a recommendation model from movie ratings using an iterative algorithm and parallel processing with Apache Spark MLlib.

https://dzone.com/links/parallel-and-iterative-processing-for-machine-lear.html

Added by Carol McDonald on August 4, 2015 at 11:15am — No Comments

JDK 8 Massive Open and Online Course: Lambdas and Streams Introduction

Are you aware that Oracle is offering a FREE course entitled "JDK 8 Massive Open and Online Course: Lambdas and Streams Introduction"?



Simon Ritter, Manager of the Oracle Java Technology Evangelist team will teach it.



The dates: 14-JUL-2015 03:00:00 PM GMT End Date: 4-AUG-2015 07:00:00 PM GMT



Java SE 8 (JDK 8) introduced a fundamentally new way of programming in Java with the introduction of Lambda expressions.

Lambda provides a simple way to pass…

Continue

Added by Michael Levin on July 5, 2015 at 7:30am — 4 Comments

The IETF - Internet Engineering Task Force

What do you think of when you think about the IETF? Are you clear about what it is? Have you ever wanted to attend a meeting? Well, your big chance is right around the corner because the IETF is meeting in Prague next month. Prague is where the Velvet Revolution occurred. The Good Soldier Sviek hung out there.…

Continue

Added by Michael Levin on June 16, 2015 at 7:31am — No Comments

JavaOne

Folks,



Perhaps this is old news for you, but JavaOne San Francisco registration is live. Various saving options are available leading up to the conference, and to take advantage of the current US$600 in savings registration needs to be completed by May 31st, 2015 (11:59pm PT).



I encourage you to read through the registration options by visiting the JavaOne registration site:…

Continue

Added by Michael Levin on April 24, 2015 at 11:00am — No Comments

An Inside Look at the Components of a Recommendation Engine

Recommendation engines help narrow your choices to those that best meet your particular needs.  In this post, we’re going to take a closer look at how all the different components of a recommendation engine work together. We’re going to use collaborative filtering on movie ratings data to recommend movies. The key components are a collaborative filtering algorithm in Apache Mahout to build and train a machine learning model,…

Continue

Added by Carol McDonald on April 13, 2015 at 9:14am — 1 Comment

I Write Like - Analyzes Writing Style

I Write Like is a website that analyzes your writing and suggests a writer your style is similar to.

The result is an answer like this:…

Continue

Added by Michael Levin on March 16, 2015 at 9:00am — No Comments

UBOS ::: a new Linux distribution you'll love

Our friends at LinuxJournal ( hi Doc) posted this fascinating article about Ubos I'm sure many of you will enjoy:



http://www.linuxjournal.com/content/youre-boss-ubos

"UBOS focuses on making the administration of home servers much simpler", says Johannes Ernst.

From Doc's article:

"Says Johannes:

My goal is to make the administration…

Continue

Added by Michael Levin on March 15, 2015 at 8:55am — No Comments

Open Source Bridge Conference Call For Papers

Open Source Bridge is a software conference in Portland that equips you for the whole year with news and information to help you be the best developer you can be...and collaborate. Here's some info, and tomorrow night I'll raffle off a free…

Continue

Added by Michael Levin on March 10, 2015 at 9:30am — No Comments

GatorJUG Tomorrow at First Magnitude Brewing

I ran into Steve from First Magnitude at Ward's yesterday. Sure am looking forward to tomorrow's GatorJUG. Last time, a couple of developers from Opie Software just happened to be there. I'll have a few interesting new books to talk about, one in particular is called "If Hemingway Wrote JavaScript". Adam…

Continue

Added by Michael Levin on March 10, 2015 at 9:00am — No Comments

Java 7 EOL

Just a reminder: Oracle plans to stop updating Java 7 in April of this year (next month).

As outlined in the Oracle JDK Support Roadmap, after April 2015, Oracle will not post further updates of Java SE 7 to its public download sites.

This might be a good time to read …

Continue

Added by Adam Davis on March 4, 2015 at 10:22pm — No Comments

Starting and Running Your Own Company, by Matt Raible

My good bud Matt just published an article about his business and I think it's worth sharing: http://raibledesigns.com/rd/entry/how_to_setup_your_own1

Matt's sees consistent success for a few reasons. One: he is passionate about the technology. You can't go far in a business with…

Continue

Added by Michael Levin on March 3, 2015 at 11:00am — No Comments

Hot New Language (Groovy)

Slightly modified from original posthttp://adamldavis.com/

There’s a hot new programming language that I’m excited about. It can be used dynamically or statically-typed, your choice. It supports functional programming constructs, including first-class functions, currying, and more. It has multiple-inheritance, type inference, and meta-programming. It also integrates really well…

Continue

Added by Adam Davis on February 28, 2015 at 3:00pm — 3 Comments

Phone Software Entrepreneurs? Under 30 Forbes List

Forbes published an under 30 tech list featuring entrepreneurs who've made it big. Read about it …

Continue

Added by Michael Levin on January 27, 2015 at 12:30pm — No Comments

Getting Started With Android

Interested in Android programming? Here's a nice, recent article at Lifehacker outlining good, free resources to get you going. http://lifehacker.com/i-want-to-write-android-apps-where-do-i-start-1643818268 ;

Added by Michael Levin on January 22, 2015 at 11:05am — No Comments

Pay What You Want: Back-End Developer Course Bundle

Pay What You Want: Back-End Developer Course Bundle…

Continue

Added by Michael Levin on January 20, 2015 at 10:23am — No Comments

Speak at OSCON!

Here's a message from O'Relly about OSCON 2015:

We're deep into planning OSCON 2015 and we've got some exciting news: OSCON is changing. We're no longer beating the drum and…

Continue

Added by Michael Levin on January 9, 2015 at 11:47am — No Comments

O'Reilly Solid Conference CFP closes 1/20!

The O'Reilly Solid conference is in San Diego in June and it's all about the merging of HW/SW for the IoT. Want to get involved? The Call for Papers is open and there are loads of benefits in giving a presentation for an O'Reilly conference., Take it from me! It's a great thing to do for the community and you learn a ton…

Continue

Added by Michael Levin on January 9, 2015 at 9:30am — No Comments

How to Use SQL, Hadoop, Drill, REST, JSON, NoSQL, and HBase in a Simple REST Client

Our friend Carol just published this article.

SQL will become one of the most prolific use cases in the Hadoop ecosystem, according to Forrester Research. Apache Drill is an open source SQL query engine for big data exploration. REST services and clients have emerged as popular technologies on the Internet. Apache HBase is a hugely popular Hadoop NoSQL…

Continue

Added by Michael Levin on January 7, 2015 at 1:45pm — No Comments

Monthly Archives

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

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.

 

Enjoy the site? Support Codetown with your donation.



InfoQ Reading List

Article: Mocking gRPC in Spring Boot Microservice Integration Tests with WireMock

Mocking gRPC services allows you to validate gRPC integration code during your tests while avoiding common pitfalls such as unreliable sandboxes, version mismatches, and complex test data setup requirements. Learn how to use WireMock’s Spring Boot integration to mock gRPC services.

By Tom Akehurst

Podcast: Technical Leadership: Building Powerful Solutions with Simplicity and Inclusion

In this podcast, Shane Hastie, Lead Editor for Culture & Methods spoke to Bhavani Vangala about creating powerful yet simple technology solutions, taking a balanced approach to AI tools, fostering inclusive team environments, and empowering women in tech leadership through focusing on strengths rather than societal constraints.

By Bhavani Vangala

Spring Boot 3.5 Delivers Improved Configuration, Containers, and SSL, Shortens Free Support

Broadcom launched Spring Boot 3.5, improving configuration, containers, and SSL. The release has breaking configuration changes and gets only 13 months of free releases, but adds 72 months of paid ones. Related Spring releases are Spring AI, Spring Security, Spring for GraphQL, Spring Integration, and Spring Data. Spring Framework 7.0 and Spring Boot 4.0 start a new generation in November 2025.

By Karsten Silz

Presentation: Taming the Configuration Beast with Pkl!

Dan Chao explains how Pkl streamlines infrastructure as code workflows. By defining schemas and constraints, Pkl enables robust configuration management, catching errors early and providing clear feedback. The demo showcases Pkl's ability to generate YAML for Kubernetes and its advantages over manual YAML complexity.

By Dan Chao

Why We Should Care about Accessible Websites and How to Do It

Web accessibility ensures content is usable by people with disabilities. According to Joanna Falkowska it can give a competitive edge, improve SEO, and support basic human rights. She emphasizes using WCAG standard and making accessibility a shared team responsibility from the start of development, to prevent costly fixes later in the process.

By Ben Linders

© 2025   Created by Michael Levin.   Powered by

Badges  |  Report an Issue  |  Terms of Service