"I recently had the pleasure of being a student of Andreas and I cannot speak highly enough of his skill and professionalism. Throughout the training, Andreas demonstrated a deep understanding of Java programming and was able to convey complex concepts in a way that was easy to understand. His ability to break down difficult topics and explain them in a clear and concise manner was truly remarkable. Overall, I would highly recommend Andreas as a teacher of Java programming. His skill and professionalism make him an exceptional educator, and I am grateful to have had the opportunity to learn from him. If you are looking for a teacher who is knowledgeable, patient and passionate about teaching, Andreas is the perfect choice."
Modern Java Fast-Track
Upgrade your codebase to modern standards by mastering the powerful features in Java 21 and 25.
You get a toolbox that replaces heavy patterns with elegant and future-proof solutions in Java.
For senior developers wanting to modernize their codebase and eliminate technical debt with Java 21 and 25.
Java 8/11 experience is required, but for basics, 'Java Jumpstart: The Essentials' is recommended first.
Curriculum & Highlights
Challenges we address
"How do you replace old for-loops and if-else chains with modern Pattern Matching for switch?"
"What are the main benefits of moving from traditional POJOs to Records in Java 21/25?"
"How do you use Sealed Classes to create more predictable and secure domain models?"
With modern syntax in place, 'Modern Functional Java: Streams' is recommended to radically simplify and streamline the team's daily data processing. →
Standard price per group (up to 12 participants) for remote delivery. Additional costs apply for onsite delivery.
Your Instructor
Andreas Olsson
Expertise through Active Learning
Java and the Spring Framework have been my core focus for over 20 years. Today, my mission is primarily to help organizations step into the future by integrating intelligent agents and AI-driven features into modern Java systems.
Actlea stands for Active Learning – the philosophy that programming is best learned by writing code, not by watching slides. My workshops focus on intensive, hands-on exercises designed to solve real-world problems.
I deliver proven training concepts globally across all timezones. While I specialize in remote delivery, I love to travel for onsite workshops. My modules are ready for immediate impact but can be tailored to your team's specific requirements.
End clients I've trained
What past participants say
Read about the pedagogical approach, the hands-on labs, and the impact on daily work.
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Ready to elevate your
team's expertise?
Book a single workshop, combine modules into a package, or plan a full-scale bootcamp. My training is built on proven standard modules, ready to be delivered immediately to your team, regardless of your location.
- ✔Expert standard modules for senior teams
- ✔Global delivery across all time zones
- ✔Fixed group rate for up to 12 participants (remote)
- ✔Flexible delivery: Remote or On-site
Get in touch for a quote or to discuss availability.