Learn how we can get a lock on a specific key to prevent concurrent actions on that key without impeding actions on other keys

Learn what Data Transfer Object (DTO), Value Object (VO), Plain Old Java Object (POJO), and JavaBeans are. Understand the differences between them and when to use each type.

Reconsidering DTOs, Spring Shell, Cloud CVEs, technical debts, and how we found dirty pipe vulnerability!

Java 18 is here, composite ids in JPA, Java language evolution, security features in Java 18, error handling, and a better hiring process!

Explore several ways to subtract days from a date object.

Learn all about the the for-each loop in Java - its syntax, benefits and drawbacks, and examples.

A quick and practical overview of how to compile all classes inside a directory using javac.

Learn how to find the asymmetric and symmetric differences between two Set objects through examples

Walk through all Java operators to understand their functionalities and how to use them

Learn how to handle multiple-line user input in Java

Interested to learn about Docker Compose? Check our article explaining about Docker Compose Java Healthcheck.

Interested to learn about sprng boot? Check our article explaining how to handle configurations in spring boot.

Spring with Java 17 baseline, simple web server, test containers, AOT in Spring 6, ZGC, and the age of APIs!

Learn why we may encounter the Java compile-time error "bad operand types for binary operator" and how to resolve the problem

How to solve "variable might not have been initialized" in Java.

Learn two different ways to format an instant as a string - one using core Java and the other using the Joda-Time library.

Interested to learn about Cloud Cost? Check our article explaining how to reduce cloud cost for EDA Kafka Applications

Interested to learn about Kafka cluster? Check our article explaining if a monolithic Kafka cluster is better than many

Spring RCE, JavaDoc Snippets, native Java, update on Project Loom, value classes, and automated tests!

Learn how Spring beans created with the singleton scope work behind the scenes to serve multiple concurrent requests.

When using collections in Java it's conventional to use the interface types for our variables and fields, rather than the concrete types. We look at the difference between these two approaches.