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Codetown is a software developer's community. It's a technical networking and educational group focused on software development.
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JavaSpecialists
Issue 273 - Truly Public Methods
Class.getMethods() returns all the public methods in this class and the classes in its ancestry. However, we cannot necessarily call these methods, for example if they are declared in a private inner class or a lambda. In this newsletter we attempt to find all truly public methods.Issue 272 - Hacking Enums Revisited
In a previous newsletter, we looked at how we could dynamically add new enums and also rewire affected switch statements. Due to improvements in Java security, our old approach needs to be updated for Java 12.Issue 271 - HttpClient Executors
Java 11 added the HttpClient to give us a better way to send HTTP requests. It supports asynchronous and synchronous mode. HTTP2 comes out of the box. The threading is a bit funky though and Professor Cay Horstmann explores how things work underneath the covers.Issue 270 - Excursions into Deduplication
When are Strings deduplicated? How can we find out whether they are of any benefit in our application? How much does it cost in terms of CPU? We try to show you how we can get this from the deduplication statistics provided by the JVM.Issue 269 - Heterogeneous Comparisons
The compareTo() function has three rules. Break any one of them and you might get an exception when you sort. In this newsletter we explore what these rules are and how they can affect sorting.Birthdays
Birthdays Today
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Events
January 23
Thursday
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OrlandoJUG ::: JPA 2.1 Entity Graphs in Spring Data with Richard
January 23, 2020 from 6pm to 8pm – Starter Studio
Join us for a talk featuring Richard Thibault Richard Thibault is a full-stack web and mobile developer with over 25 years of experience in the software industry. He is currently focused on Java a…
Organized by Michael Levin | Type: meetup
Blog Posts
Why Availing Outsourced Data Conversion Process is Best Choice for Small Business?
Posted by Riya Lewis on November 5, 2019 at 11:13am 0 Comments 0 Likes
The advancement in the technology system has brought tremendous changes. Currently, many firms are adopting a trendy system to deal with business obstacles. The question is, why there is a need for changing the format of a file? What leads to the data conversion process?
The compatibility of a specific file plays an important role in expanding business productivity. Most often the product and the service-based organization are liable to consider…
ContinueMobile Vendor Market Share
Posted by Ismail Jones on September 17, 2019 at 11:09pm 0 Comments 0 Likes
IBM is moving OpenPower Foundation to The Linux Foundation
Posted by Michael Lucas on August 22, 2019 at 8:18am 0 Comments 1 Like
Swampcast features Tim Westergren, Pandora CEO
Posted by Michael Levin on August 3, 2019 at 12:30pm 0 Comments 0 Likes
Join Michael Levin in this Swampcast interview with Tim Westergren, Pandora CEO. Click here to listen. Photo…
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
Groups
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Kotlin Town
6 members
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OrlandoJUG Town
95 members
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Spring Town
48 members
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Jobs
75 members
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GatorJUG Town
30 members
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Android Town
35 members
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Coding Dojo
6 members
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Java SE Town
14 members
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Python
15 members
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Freelance Village
11 members
Forum
Be Careful What You Wish For
Interesting. Ask Elon Musk what scares him…Continue
Tags: Braintree, PayPal, kernal, google, neuralink
Started by Michael Levin in AI, ML & Big Data Aug 8.
Java books for any library 5 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 sneha gulati Feb 8.
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 andoid.app.fragment 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.
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 slaassel@gmail.com…Continue
Started by Saad Laassel in Java. Last reply by Theresa Wizorek-MacIntyre Oct 15, 2014.
Latest Activity
Data Science – Baba Brinkman Music Video
Rap battle between a data scientist and a classical statistician, arguing for predictive algorithmic models versus inferential data models respectively. Down...
Riya Lewis posted a blog postWhy Availing Outsourced Data Conversion Process is Best Choice for Small Business?
The advancement in the technology system has brought tremendous changes. Currently, many firms are adopting a trendy system to deal with business obstacles. The question is, why there is a need for changing the format of a file? What leads to the data conversion process?The compatibility of a specific file plays an important role in expanding business productivity. Most often the product and the service-based organization are liable to consider multiple aspects. However, any decision taken in a…See More
October OJUG
Folks, I’m giving a talk on AI at Devoxx next month in Morocco. Our scheduled Spring talk is postponed. Let me know if you’d like a preview of my AI talk instead. We don’t meet Nov/Dec. Here’s the abstract: https://twitter.com/mikelevin/status/1181949549117607937?s=21See More
Google's Deep Mind Explained! - Self Learning A.I.
Subscribe here: https://goo.gl/9FS8uF Become a Patreon!: https://www.patreon.com/ColdFusion_TV Visual animal AI: https://www.youtube.com/watch?v=DgPaCWJL7XI ...
Google's Deep Mind Explained! - Self Learning A.I.
Subscribe here: https://goo.gl/9FS8uF Become a Patreon!: https://www.patreon.com/ColdFusion_TV Visual animal AI: https://www.youtube.com/watch?v=DgPaCWJL7XI ...
Live OrlandoJUG broadcast tonight
Tonight’s Orlandojug will be broadcast live! Monitor @OrlandoJUG on Twitter for the URL!See More
Live OrlandoJUG broadcast tonight
Tonight’s Orlandojug will be broadcast live! Monitor @OrlandoJUG on Twitter for the URL!See More
OrlandoJUG Town
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
Spring Town
Dependency injection. It's a smart approach. Believe that? We do! Come on in and share what you know. Ask all your Spring questions here, too!
OrlandoJUG ::: JPA 2.1 Entity Graphs in Spring Data with Richard at Starter Studio
January 23, 2020 from 6pm to 8pm
Join us for a talk featuring Richard ThibaultRichard Thibault is a full-stack web and mobile developer with over 25 years of experience in the software industry. He is currently focused on Java and Spring, though he also develops in Objective C, Swift, and Javascript. He has built apps for various industries over the years, including banking, travel, and real estate. In…See More
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…
ContinueCreated 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.
InfoQ Reading List
Article: Predicting Time to Cook, Arrive, and Deliver in Uber Eats
Time predictions are critical to Uber Eats business as they determine when to dispatch delivery partners as well as ensure customer satisfaction. This article explains how their dispatch system evolved through time predictions powered by machine learning, followed by a deep dive on how to predict food preparation time without ground truth data. It goes over delivery and travel time predictions.
By Zi WangMicrosoft Announces Azure Synapse for Data Warehousing and Analytics
One of the announcements made by Microsoft during their annual Ignite conference was around their new analytics service called Azure Synapse. The service, which is a continuation of Azure SQL Data Warehouse, focuses on bringing enterprise data warehousing and Big Data analytics into a single place.
By Eldert GrootenboerPresentation: The Future of Chaos Engineering: In Pursuit of the Unknown Unknowns
Crystal Hirschorn discusses where their chaos and resilience practices must evolve to keep pace with the challenges of growing complexity.
By Crystal HirschornDeep-Learning Framework SINGA Graduates to Top-Level Apache Project
The Apache Software Foundation (ASF) recently announced that SINGA, a framework for distributed deep-learning, has graduated to top-level project (TLP) status, signifying the project's maturity and stability. SINGA has already been adopted by companies in several sectors, including banking and healthcare.
By Anthony AlfordArticle: 13 Practices for Better Code Reviews
When done incorrectly, code review can be irritating, excessively time consuming, and have little or no impact on code quality. However, if done well, it can improve the quality of code and reduce the overall time spent delivering features. This article provides several good practices regarding both technical and cultural aspects of code review.
By Mohammad Ali Bozorgzadeh
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