Factory Design Pattern,What is it? Factory Method is a creational design pattern that defines an interface or abstract class for creating an object, but allows subclasses to decide...

Singleton Design Pattern,Real-World Analogy Sun of our solar system is an excellent example of the singleton pattern. All the planets in our solar system have one sun and it has a ...

A bit about marker interfaces in Java,Hello again! This time I would like to talk about marker interfaces in Java. Every Java developer has seen them, although not everybody is awa...

Implementing a hexagonal architecture,A hexagonal architecture simplifies deferring or changing technology decisions. You want to change to a different framework? Write a new adapt...

SOLID design principles: Building stable and flexible systems,To build stable and flexible software, we need to keep software design principles in mind. Having error-free code is e...

How a great package structure can make a great application,In this post I will give you some simple advice that, when followed carefully, will immediately lead to an easy to mainta...

Guaranteeing and enforcing your architecture (with ArchUnit), Recently I was working on an application which relied heavily on a variety of data sources. Our application actually c...

Architecture of a JavaFX application, Introduction I am developing JavaFX applications for about 5 years now and used different architecture patterns for it. First i started with M...

How to design a service layer in Java using CRF, Intro As part of my Effective Java course, I've been showing how to design a simple, but flexible service layer for Java applicatio...