Explore two HashMap-based implementation to count the occurrences of each character in a given string.

Swagger group endpoints resources: Learn how to group API endpoints by resources in Swagger for better organization and readability.

Learn how to deploy Spring Boot applications to Kubernetes using Helm and Kustomize, with a strong focus on securely managing configuration

Learn the differences between Guice Provides vs Provider classes and understand when to use each approach in your applications.

Java compilation compiler api: Dynamically compile Java code at runtime using the Java Compiler API introduced in Java 6.

Learn about Java JVM arguments prefixes and how to optimize application performance, debugging, and configuration using startup options.

Learn about Java Stream Gatherers introduced in Java 24 with examples like windowFixed, scanLeft, foldLeft, and custom gatherers.

apache avro serialize enum values: Serialize enum values in Java using Apache Avro with schema support, null handling, and evolution.

Prepare for your next Java developer role with this up-to-date guide on Spring Boot 3.2 interview questions and answers

Learn how to implement Java return anydata GraphQL mutation with flexible, type-safe responses using union types and Spring Boot.

Spring aop method call within same class: Learn why Spring AOP doesn't work on internal method calls and explore effective workarounds.

Java logback conditional logging: Control log output dynamically in Java using Logback filters, expressions, and environment profiles.

Explore all the new features and changes introduced in Java 25.

Spring boot dapr pub sub messaging: Learn Pub/Sub messaging with Spring Boot and Dapr for building event-driven microservices.

1. Introduction This post introduces the OpenCV Object Detection Java Swing Viewer, which builds upon the concepts covered in my previous posts (see Build your own real-time object detection desktop app using Java Swing and OpenCV. Learn to integrate YOLO…

Learn java image collision detection using bounding box, pixel-perfect, and polygon methods in JavaFX with code examples.

Java protobuf maps: Learn how to use maps in Java Protobuf to store key-value pairs with custom message types.

Learn how to integrate Apache Camel with Kafka to build event-driven architectures. This guide covers creating Camel routes to consume & more

Learn how to implement the Circuit Breaker pattern in Apache Camel routes using Hystrix and Resilience4j. This guide includes examples

Learn how to build reactive microservices with Spring WebFlux and Reactor. This guide covers non-blocking REST APIs, Flux and Mono

Compare dependency injection in Micronaut vs. Spring with real-world examples. Learn the key differences in performance, annotations & more