Laboratory - Week 10 – 11 Facade Pattern

In the Factory Design Pattern, which component is responsible for defining the interface of the objects to be created?

• 
  Concrete Factory

• Client

• Product

• Concrete Product

In a software system using the Factory Design Pattern, what is the main benefit of having the factory create objects instead of using direct object creation?

• Elimination of polymorphism.

• Reduced code complexity.

• Improved performance.

• Simplified debugging.

Which statement best defines the Facade design pattern?

• Facade pattern enables direct access to individual components within the subsystem for increased flexibility.

• Facade pattern simplifies the client's interaction with a complex system by providing a higher-level interface.

• Facade pattern is used to enforce strict encapsulation within a single class, minimizing interactions between subsystems.

• Facade pattern primarily focuses on enhancing the performance of subsystems by optimizing internal algorithms.

Which of the following best describes the Factory Design Pattern?

• A creational design pattern.

• A structural design pattern.

• A behavioral design pattern.

• 
  An architectural design pattern.

What is the purpose of the Switch interface in this code?

• To define the switchOn and switchOff methods that are implemented by the ElectricFan, Tv, and Printer classes

• To prompt the user to choose an appliance

• To create an instance of the Appliance class

• To hold information about the appliance created by the user's choice

Which of the following statements can be used to create an instance of a Switch object that can turn on a TV with Netflix installed?

• Tv tv = new Tv();
  tv.setWithNetflix(true);

• Switch sw = new Tv();
  sw.setWithNetflix(true);

• none of the above.

• Appliance app = new Tv();
  app.setWithNetflix(true);

Consider the following code snippet:

• It provides a unified interface to the Subsystem class.

• It delegates requests to the appropriate methods in the Subsystem class.

• It hides the complexity of the Subsystem class from the client code.

• 
  All of the above.

What is the primary purpose of the Factory Design Pattern?

• To encapsulate the process of object creation.

• To manage relationships between objects.

• To enable polymorphism.

• To ensure that a single instance of a class is created.

Which of the following statements can be used to create an instance of a Switch object that can turn on a TV with Netflix installed?

• none of the above.

• Appliance app = new Tv();
  app.setWithNetflix(true);

• 
  Tv tv = new Tv();
  tv.setWithNetflix(true);

• Switch sw = new Tv();
  sw.setWithNetflix(true);

In a software system using the Factory Design Pattern, what is the main benefit of having the factory create objects instead of using direct object creation?

• Reduced code complexity.

• Improved performance.

• Elimination of polymorphism.

• Simplified debugging.