Java 197
Java is the core topic across this site. These posts cover modern Java features, OpenJDK evolutions, performance tuning, tooling, and hands-on development lessons from real projects.
Foojay Podcast #22: When Profession and Fun Overlap
Plenty of developers spend their weekends teaching kids to code, build robots, or tinker with Raspberry Pi boards. That side work often shapes their day job in ways they did not …
Foojay Podcast #21: Brazil SouJava JUG and How to Grow your Developer Career
What does it take to build the world’s largest Java User Group, and what can other developers learn from the people who run it? SouJava has been gathering Java fans in Brazil …
Foojay Podcast #20: Functional Programming, 'The Good, the Bad, and the Ugly'
Functional programming splits the room. Some developers swear by it, others avoid it, and most of us land somewhere in the middle trying to figure out when it actually helps. This …
Foojay Podcast #19: How Working For Free For Fun Brought Me Fame and Fortune – Or At Least Some Of Each – In The End
Plenty of developers spend evenings hacking on open-source projects for free. Some of them turn that hobby into a job, a company, or a reputation that opens unexpected doors. In …
Interview by Bazlur Rahman: Unlocking Java Secrets with Frank Delporte - Insights, Stories, and Tips for Success
On Foojay.io, Bazlur Rahman is publishing a series of interviews with various people from the OpenJDK community. I had the honor to be included in this series, and this is a …
Foojay Podcast #18: Atlanta JUG and DevNexus
Running a Java User Group takes more than a meeting room and good intentions. It takes volunteers, a legal structure, venues, sponsors, and years of steady work. We sat down with …
Foojay Podcast #17: Execute Java Code with TornadoVM on CPUs, GPUs, and FPGAs
Running Java on a CPU is the default, but what happens when you point the same code at a GPU or an FPGA? TornadoVM does exactly that. It offloads JVM workloads to accelerators and …
Hidden Beauties of Java Enums
Let’s take a look at the power and beauty of what Java Enums can provide…
Foojay Podcast #16: Welcome to Java 20!
Every six months a new Java version lands, and Java 20 brings another round of preview features, incubator modules, and steady improvements. For developers, the question is simple. …
Book review - Practical Design Patterns for Java Developers
Hone your software design skills by implementing popular design patterns in Java This book is for sale on Amazon in Kindle and Paperback editions.
Foojay Podcast #15: Japan JUG
Running a Java User Group takes more than scheduling a room and picking a topic. It takes people who care enough to keep showing up, finding speakers, and rebuilding momentum after …
Foojay Podcast #14: Debugging Tools and Skills for Fun and Profit
Every Java developer hits a bug they cannot explain. The tools are right there in the IDE, but most of us only scratch the surface of what they can do. This episode digs into …
Foojay Podcast #13: Denver and Boulder JUG
Running a Java User Group takes more than booking a room and picking a topic. Speakers go quiet, venues close, and attendance swings hard after a pandemic. In this stop of the …
Foojay Podcast #12: State and Future of the IDEs
Every Java developer picks an IDE, and that choice shapes the day-to-day work. But what does it take to keep an IDE current when the language ships a new version every six months …
Foojay Podcast #11: Looking Back to 2022 and Predictions for 2023
Every new year invites a familiar question. Which of last year’s bold tech bets actually played out, and which fizzled? We sit down with Ted Neward to score his 2022 …
New Section Added to Foojay.io: Java Quick Start
Foojay.io aims to be the starting point for “all-things OpenJDK,” but during one of my morning walks the idea struck me that this site really needs complete beginner materials, …
Foojay Podcast #10: JUG World Tour: Dubai JUG
Starting a Java User Group from scratch takes more than enthusiasm. It takes speakers, attendees, sponsors, and a local culture that wants to show up. We sat down with Jad Salhani …
Foojay Podcast #9: The State of JavaFX Framework, Libraries, and Projects
Plenty of developers still think Java only lives on the server. JavaFX tells a different story, from desktop tools to CAD apps to a brain-computer interface visualizer. To map out …
HiveMQ Cloud, part 4 - Sending sensor data from Raspberry Pi Pico W to HiveMQ Cloud
Exactly one year ago, in December 2021, I published three articles of MQTT messaging with Raspberry Pi, Raspberry Pi Pico and HiveMQ Cloud. On June 30th of 2022, Raspberry Pi …
Foojay Podcast #8: JUG World Tour: Manchester
Running a Java User Group sounds simple until you try it. Finding speakers, picking venues, keeping people coming back, and growing the audience takes real work. To kick off a new …