Refactoring from Imperative to Functional and Zero to Hero in K8s Native Java

ArnhemJUG
We are pleased to host another great meetup in November. For this meet-up, we may welcome Dr. Venkat Subramaniam and Daniel Oh.

Agenda

• 17.00 CET walk-in
• 17:30 – 18:30 Food and drinks
• 18.30 -19.30 talk: Refactoring from Imperative to Functional Style by Dr. Venkat Subramaniam
• 19.30-19.45 break
• 19.45 -20:45 talk: Zero to Hero in Kubernetes Native Java
  by Daniel Oh
• 20.45 – 21.15 drinks

Refactoring from Imperative to Functional Style
Learning syntax is part of our lives and that comes from practice. The challenge with programming in the functional style is to be able to think in a paradigm that is different from the one we are used to. In this live coding presentation, we will take a look at how to promote such thinking by taking some imperative style code and refactoring to functional style. Along the way, we will discuss the thought process to make the journey a pleasant experience and also explore functions baked into the JDK that make this possible.

About Venkat Subramaniam
Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston.

He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences. Venkat helps his clients effectively apply and succeed with sustainable agile practices on their software projects.

Venkat is a (co)author of multiple technical books, including the 2007 Jolt Productivity award winning book Practices of an Agile Developer. You can find a list of his books at agiledeveloper.com. You can reach him by email at [venkats@agiledeveloper.com](mailto:venkats@agiledeveloper.com) or on twitter at @venkat_s.

Zero to Hero in Kubernetes Native Java
More than 15 million Java developers are currently working to realize business requirements and spend a ton of time and effort to optimize the application performance for a variety of workloads (e.g., Web, Mobile, AI/ML, Edge) in the cloud. A big issue for the developers is to adopt a new language programming or runtimes over Java due to the lack of compatibility with Kubernetes. This session will walk you through how developers can scaffold a Java project from scratch then build it as a Kubernetes Native application that allows you to have a tiny low memory footprint and milliseconds startup time. You can also continue testing and debugging the application while it’s already deployed to the remote Kubernetes, same as the local developer experiences of inner loop development.

About Daniel Oh
Daniel Oh is a Senior Principal Developer Advocate at Red Hat to evangelize developers for building Cloud-Native Microservices and Serverless Functions with Cloud-Native Runtimes (i.e. Quarkus, Spring Boot, Node.js) and OpenShift/Kubernetes. Daniel also continues to contribute to various cloud open-source projects and ecosystems as a CNCF ambassador for accelerating DevOps adoption in enterprises. He's speaking at lots of technical seminars, workshops, and meetups to elaborate on new emerging technologies for enterprise developers & DevOps teams.