Java 21 certification

After failing the OCP Java 21 twice, I went back to Chapter 1 and started teaching all 94 certification topics. It changed the way I learned Java. There is a big difference between understanding something well enough to answer a question and understanding it well enough to explain it to someone else. I learned that…

Six days after failing the OCP Java 21 exam with 64%, I tried again and scored one step lower: 62%. Here’s what those two failures taught me about the difference between being close to passing and actually being prepared. On July 14, 2025, I took the OCP Java 21 certification exam for the first time.…

After 17 months of preparation, two failed attempts, and finally passing with 80%, this is the study plan I would follow if I had to start all over again. In my previous article, “1 Java Certification in 17 Months”, I shared how it took me 17 months, two failed attempts, and three exam attempts to…

How a personal goal to update my Java knowledge became a 17-month journey, a community of hundreds of developers, two failed attempts, and finally an OCP Java 21 certification. 7 AWS certifications in 16 months. 1 Java certification in 17 months. Yes, you read that correctly. On August 21, 2026, after 17 months of studying,…

Proving that you stay up to date with Java’s New Features Mastering a programming language is extremely important to being a relevant developer and performing well in your job. Studying for a certification is an excellent way to gain deeper knowledge on a subject, moving beyond the basics to acquire solid understanding. Currently, a new…