The Singleton pattern is deceptively simple, even and especially for Java developers. In this classic JavaWorld article, David Geary demonstrates how Java developers implement singletons, with code ...

Learn the drawbacks of using the Singleton design pattern, one of the most widely used design patterns, and the alternatives to avoid its potential pitfalls Although design patterns are solutions to ...

As a good JavaScript developer, you strive to write clean, healthy, and maintainable code. You solve interesting challenges that, while unique, don’t necessarily require unique solutions. You’ve ...

Design patterns are the building blocks of clean, maintainable code - but learning them can feel overwhelming. In just 10 ...

First, create a new C# WPF application. Next, create a folder named Commands. The undo system will contain two essential components: the CommandStateManager and the IUndoCommand interface. The ...

SystemVerilog supports templates for generic code writing using parameterized classes. Here we’re going to describe some of the design patterns in the code that make up the UVM base class library.

This article looks at some of the abstractions in a new profile of UML, the RT-Profile, which particularly affects software design for real-time use. Included in the paper are a set of patterns that ...