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by Factory design pattern in C++ is a creational design pattern which deals with creating objects without showing the exact class of object that is being created. This design pattern basically allows a class to defer the instantiation to sub-classes. General class diagram of Factory pattern is shown below.
(more…)by Factory design pattern in C++ is a creational design pattern which deals with creating objects without showing the exact class of object that is being created. This design pattern basically allows a class to defer the instantiation to sub-classes. Below diagram shows a general class diagram of the Factory pattern.
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The Abstract Factory pattern serves encapsulation to a group of individual factories without exposing the concrete classes. In this model, a generic interface of an abstract factory class is used to create the required concrete object separating the details of implementation of objects from their usage and composition. This design pattern is widely used in GUI applications where similar kind of GUI components needs to be created. For Design patterns basic explanation see (Design Patterns Simplified Version)