Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...

I’ve received quite a bit of feedback on my “Singletons Rule” Q&A. Unfortunately, much of the confusion seems to stem from this sentence: The difference between using a singleton over a class with ...

Object-Oriented Analysis and Design is a course that presents an introduction to the design and construction of software systems using techniques that view a system as a set of objects that work ...

In of this three-part series introducing design patterns, I referred to Design Patterns: Elements of Reusable Object-Oriented Design. This classic was written by Erich Gamma, Richard Helm, Ralph ...

Java Essentials Volume 2 provides structured pathway from Java fundamentals to advanced application development COLORADO, CO, UNITED STATES, January 20, 2026 ...

It's not good enough to simply write code that works. That code must be easily maintained, enhanced and debugged when problems happen. One of the reasons why object-oriented programming is so popular ...