Although the Singleton design pattern—as evidenced below by the figure below—is one of the simplest design patterns, it presents a number of pitfalls for the unwary Java developer.

We discuss some of the most common design patterns in Java and how they can help you solve common coding issues. Learn more. A design pattern is a well-established and documented solution to a ...

The Singleton design pattern promotes tight coupling between the classes in your application. Tight coupling increases the maintenance cost as maintenance and code refactoring becomes difficult.