Java / NLJUG

J-Fall 2022: Tobias Voß – Software archaeology – Learning from the landing on the moon!

The landing on the moon was about 50 years ago and mankind plans again big space programs. IT played a major role at the first moon landing and many important fundaments of software engineering were established. The term itself was coined by Margaret Hamilton during the design of the Apollo Guidance Computer (AGC), the control […]

msmelt

December 4, 2022

29

J-Fall 2022: Tom Eugelink – Very serious gaming

The recording starts after 11 minutes due to technical issues. War fighting in the modern navy is completely software based. No analog bleeps or pings; every weapon and sensor on a navy ship nowadays has a UTP connector. The operators that work in the CIC, the Combat Information Center deep inside the ship, see a […]

msmelt

December 4, 2022

19

J-Fall 2022: Urs Peter – Event-Driven Microservices = Microservices Done Right

Are you slowly getting this uncomfortable feeling that Microservices might have brought you more trouble than relief? Have your Microservices turned into a landscape of distributed monoliths, tightly coupled and tangled, where a failure of one service cascades to many others? Then it’s the highest time you get acquainted with Event-Driven Microservices that catapult the […]

msmelt

December 4, 2022

26

J-Fall 2022: Vasco Veloso – Keynote ‘Bullet-proofing APIs to build reliable systems’

Misunderstandings frequently happen in spoken speech. Typos in written messages are paramount. Humans can often perceive the incorrect communication’s intended meaning and adjust their actions accordingly, but machines are naturally extraordinarily literal. Mistyped instructions cannot be executed. Many programming languages solved this problem by offering tools that perform exhaustive verification before any code execution is […]

msmelt

December 4, 2022

12

J-Fall 2022: Venkat Subramaniam – Design Patterns in the Light of Lambda Expressions

Design patterns are common place in OO programming. With the introduction of lambda expressions in languages like Java, one has to wonder about their influence on design patterns. In this presentation we will take up some of the common design patterns and rework them using lambda expressions. We will also explore some other patterns that […]

msmelt

December 4, 2022

16

J-Fall 2022: Venkat Subramaniam – Keynote ‘The Art of Simplicity’

We’ve been told to keep things simple. It turns out, that’s easily said than done. Creating something simple is, well, not really that simple. If simple was sitting next to us, would we even recognize it? Is my design simple, is yours simple? How can we tell? That’s a simple question, but the answer to […]

msmelt

December 4, 2022

22

J-Fall 2023 Aftermovie

Let us take you back to J-Fall 2023, where we celebrated the 20th anniversary of J-Fall!

msmelt

April 2, 2024

28

J-Fall 2023: Roy Wasse & Roy van Rijn

How good of a developer are you?Are you a good Java developer? What makes a good developer? And how can we measure this? If you ask Oracle they’ll say OCP (Oracle Certified Programmer), which means that you know when the compiler makes those red squiggly lines in your IDE disappear. If you ask FAANG companies […]

msmelt

May 15, 2024

43

J-Fall 2023: A Bird’s-Eye View of Version Control with Pijul – Hanno Embregts

Git has done wonders for the world of version control, but it is not without its quirks. If you are looking for a distributed VCS that goes a bit easier on newcomers by being more intuitive, you should check out Pijul. The Pijul VCS is patch-based (instead of snapshot-based), fast (it is written in Rust) […]

msmelt

May 15, 2024

24

J-Fall 2023: A design pattern goes to the supermarket – Kaya Weers

Everybody knows the term design patterns. Some know the patterns and correct implementation by heart. Others vaguely recognize the pattern names but don’t recall the details. This talk is intended for the latter group.I’ll dive into a couple of design patterns using real-life examples. What would a design pattern look like in day-to-day life? We’ll […]

msmelt

April 10, 2024

29