Question

the following question concerns the differences between the design patterns abstract factory and factory method. mark the choices below to be correct or incorrect. you have to briefly justify your answer for each. a) the abstract factory pattern can create several types of products, whereas the factory method only creates one. b) the abstract factory defines an interface consisting of several methods, whereas the factory method pattern only defines a single method for creating objects c) the abstract factory defines an interface for creating related objects, whereas the factory method defines a base class or an interface for methods that create objects of a common type.

Answer 1

a) correct - The abstract factory pattern allows for the creation of multiple types of products by providing an interface for creating them. The factory method pattern, on the other hand, typically only creates one type of product.

b) incorrect - Both the abstract factory and factory method patterns define an interface or base class with methods for creating objects. The abstract factory pattern typically defines an interface with methods for creating multiple related products, while the factory method pattern defines a single method for creating a product.

c) correct - The abstract factory pattern defines an interface for creating related objects, while the factory method pattern defines a base class or interface for creating objects of a common type. The abstract factory pattern is used to create a set of related objects, while the factory method pattern is used to create a single object.

The abstract factory pattern and the factory method pattern are both creational design patterns that provide ways to create objects. However, there are some key differences between the two patterns:

1. Purpose: The main purpose of the abstract factory pattern is to create a set of related objects, while the factory method pattern is used to create a single object.
2. Number of products: The abstract factory pattern allows for the creation of multiple types of products, while the factory method pattern typically only creates one type of product.
3. Level of abstraction: The abstract factory pattern defines an interface for creating related objects at a higher level of abstraction, while the factory method pattern defines a base class or interface for creating objects of a common type at a lower level of abstraction.
4. Implementation: The abstract factory pattern requires the implementation of multiple factory methods to create each type of product, while the factory method pattern only requires the implementation of a single factory method to create a product.
5. Coupling: The abstract factory pattern promotes loose coupling between the client and the products it creates, as the client depends on the abstract factory interface rather than concrete classes. The factory method pattern promotes more coupling, as the client depends on a concrete class to create products.

Learn more about abstract factory, here https://brainly.com/question/12914615

#SPJ4