Which of the following are true for the singleton class
- Singleton classes should be used whenever it is important that only a single instance of a class exist and that that single instance be widely accessible
- The Singleton pattern can also be used, with slight modifications, when a limited number of instances greater than one are desired
- Access restrictions are usually easy to add by restricting the visibility of either the class or the factory method
- All of the mentioned
Software Engineering
Analysis and design