java 21 features

Java Pattern Matching (Java 16 → 21)

Nikhil Naoghare / March 29, 2026

If you’ve been writing Java for a while, you probably remember this annoying pattern:

👉 Check type using instanceof
👉 Cast manually
👉 Then use the object

Pattern Matching removes this boilerplate and makes your code cleaner, safer, and more readable.
Let’s go step by step and understand how it evolved.

Java, JDK 21

JDK 21 Features

Nikhil Naoghare / March 29, 2026

If you’ve been working with Java for a while, you probably know that every LTS release brings something meaningful.
👉 And JDK 21 is one of those releases that actually changes how we write concurrent and scalable applications.
This isn’t just about syntax sugar — it’s about solving real problems like thread scalability, readability, and safer concurrency.