HashMap Internals in Java: Why It Breaks in Production and How to Fix It
Production Problem: Latency Spike Caused by a “Simple” HashMap A payment aggregation service handling tens of thousands of transactions per […]
Java Examples
Java Thread Creation: Traditional Threads vs ExecutorService vs Virtual Threads
Java Thread Creation Has Changed (And Most Developers Haven’t Noticed) For years, we’ve been taught: But now? Java has introduced
Evolution of Java from JDK 8 to JDK 25
If you started Java around 2014–2016, chances are you lived in the world of Java 8 for a long time.
And honestly… Java 8 was revolutionary.
But what many developers don’t realize is 👉 the real transformation of Java happened after JDK 8.
Java didn’t just add features — it reinvented itself:
Faster release cycles
Modern language features
Massive performance upgrades
Completely new concurrency model (yes, Virtual Threads 🔥)
JDK 25 Features Explained with Real-World Understanding
Java 25 is one of those releases that quietly fixes issues with performance, concurrency, maintainability.
It doesn’t try to impress you with flashy features. Instead, it refines the foundation — especially around concurrency and JVM behaviour.
JVM as a First-Class AI Platform: Why Enterprises Are Moving AI to Java
AI is no longer limited to Python—enterprises are increasingly running AI directly inside JVM-based systems. By embedding model inference into Java applications, teams are reducing system complexity, improving performance, and keeping data closer to where it already lives. This shift allows developers to leverage existing Spring Boot architectures while integrating AI seamlessly into production workflows.
Sealed Classes in Java – Complete Guide with Real-World Examples
If you’ve ever designed a class hierarchy and thought:
“I wish I could allow only specific classes to extend this…”
Then sealed classes are exactly what you need.
This feature is not just syntactic sugar — it fundamentally improves how we model real-world problems in Java.
JDK 15 features
JDK 15 brings several exciting features that improve developer productivity and JVM capabilities. From cleaner multi-line strings to powerful class modeling and JVM enhancements, this guide explains everything with practical examples and internal insights. 🚀
Concurrency in Java – Developer’s Perspective
Why Concurrency Even Matters If you’ve been writing Java for a while, you’ve already been using threads — even if
Maven project in Eclipse
In this blog we would be discussing about one of the ways of creating a Maven project in Eclipse.
HashMap in Java Explained – Internal Working, Evolution & Real Insights
Java HashMap uses
🔑 Key → Hash → Bucket flow (core hashing concept)
🧱 Bucket array structure (internal storage)
🔗 Collision handling (linked list)
🌳 Java 8 enhancement (tree structure after threshold)
⚡ Performance hint (O(1))
Hibernate, Java, Java Examples, JDBC, JSP, Spring, XML
Spring Hibernate Integration
In this post we will be discussing on Spring Hibernate integration. As we all know Spring provides an ORM support and
Java, Java Examples, JDBC, Spring, XML
Spring JDBC configuration
This post explains the Spring JDBC configuration for accessing database in any Spring application. One or the most commonly used framework