The java double-check singleton pattern is not thread safe and can’t be fixed. In this article, Dr. Alexey Yakubovich provides an implementation of the Singleton pattern that he claims is thread ...

Take advantage of the Singleton design pattern to create classes that can have only one instance throughout the lifetime of the application ...

Lazy loading is a common design pattern often used for constructing resource-intensive objects. It's also frequently used in conjunction with the singleton, and/or factory patterns. Lazy loading ...