Design patterns ... this is a factory class used to create concrete objects of the ConcreteFlyweight type Client — this stores references to the flyweight instances Implement Flyweight abstract ...

By declaring the constructor as internal (in C# ... inside the Factory Method. Conventionally, the Builder is a standalone class with multiple Boolean properties, one for each option. For the standard ...

The factory ... concrete implementation of an abstract class so the calling application can manipulate the returned object. In Figure A, you can see a UML diagram of a simple factory pattern.