Codetown ::: a software developer's community
Oracle offers variety of Java Certifications for all Java Editions (Java SE, Java EE and Java ME). Oracle Certified Associate, Java SE 5/SE 6 (Formerly Sun Certified Java Associate (SCJA) ) certification provides basic knowledge required to manage a Java project.
What exam I need to pass to achieve OCA for Java SE 6 Certification?
You need to complete 1Z0-850 – Java Standard Edition 5 and 6, Certified Associate Exam to…
ContinueAdded by Treacy Jane on September 30, 2011 at 6:11am — No Comments
Added by Treacy Jane on September 28, 2011 at 9:11am — No Comments
Added by Treacy Jane on September 28, 2011 at 9:07am — No Comments
Dean Iverson and I have been working on an open source project called GroovyFX that provides a Groovy binding that sits on the new JavaFX 2.0 platform. Dean has written a good blog on how to get started with GroovyFX here. It is already a little dated, but if you ignore the JavaFX build numbers and just download the…
ContinueAdded by Jim Clarke on September 27, 2011 at 4:51pm — No Comments
Hi there,
I have couple announcements.
First: Do you need Java scheduling? How about try out an easy web based UI with Quartz!
Both myschedule-2.1.2 (for Quartz-2.1.0) and myschedule-1.5.2(for Quartz-1.8.5) releases are available for download here: http://code.google.com/p/myschedule/downloads/list
I have fixed few bugs and improved the UI slightly. Both of these releases should…
Added by Zemian Deng on September 25, 2011 at 10:24am — No Comments
Here's a recap of what happened at the JCertif 2011 conference in Brazzaville from Chrisobel Malonga:
"Hello with all, I take a few minutes in order to announce to you how much JCertif 2011 of which you are the actors at summer a true success and a true human adventure which was worth the cost d' to be lived. My arrival on the spot dated August 27 m' allowed…
ContinueAdded by Michael Levin on September 19, 2011 at 8:30pm — No Comments
Added by Michael Levin on September 15, 2011 at 8:28am — 2 Comments
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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.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
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Alex Good discusses the fragility of modern cloud-dependent apps and shares a roadmap for "local-first" software. By leveraging a Git-like DAG structure and Automerge, he explains how to move from brittle client-server models to resilient systems where data lives on-device. He explores technical implementation, rich-text merging, and how this infrastructure simplifies engineering workflows.
By Alex Good
Agent workflows make transport a first-order concern. Multi-turn, tool-heavy loops amplify overhead that is negligible in single-turn LLM use. Stateful continuation cuts overhead dramatically. Caching context server-side can reduce client-sent data by 80%+ and improve execution time by 15–29% .
By Anirudh Mendiratta
Birgitta Böckeler discusses the rapid evolution of AI agents, moving beyond "vibe coding" to sophisticated context engineering. She explains how architectural constraints and "harness engineering" create the safety nets required for autonomous code generation. She shares vital insights for leaders on balancing speed with maintainability, security risks, and the cost of AI autonomy.
By Birgitta Böckeler
Spotify's engineering team developed the 2025 "Wrapped Archive," generating 1.4 billion personalized reports for 350 million users. This system identifies key listening days and crafts narratives using a language model. As companies increasingly provide narrative recaps, concerns about user privacy and data tracking persist, necessitating a balance between insights and privacy safeguards.
By Matt Foster
Madelyn Olson discusses the evolution of Valkey's data structures, moving away from "textbook" pointer-chasing HashMaps to more cache-aware designs. She explains the implementation of "Swedish" tables to maximize memory density. She shares insights on systems intuition, memory prefetching, and the rigorous testing needed for mission-critical caches.
By Madelyn Olson
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