In which scenario would the Factory Method pattern be a more suitable choice than the Simple Factory pattern?
When you want to avoid using inheritance in your object creation process.
When object creation logic is simple and doesn't require subclass-specific variations.
When you anticipate the introduction of new product types in the future.
When you have a fixed set of objects to create and no need for future extensions.
Which of the following is NOT a typical use case for the Adapter Pattern?
Implementing a new sorting algorithm for a data structure.
Integrating legacy code with a modern system.
Creating a reusable component that can work with various data sources.
Using third-party libraries with incompatible interfaces.
Which of the following is NOT a typical category of design patterns?
Structural
Functional
Behavioral
Creational
In a Facade Pattern implementation, what is the role of the Facade class?
It directly implements the complex logic of the subsystem.
It delegates requests to appropriate subsystem classes and returns results.
It restricts access to the subsystem, preventing any external interaction.
It defines the interfaces for all classes within the subsystem.
Which scenario best exemplifies a situation where the Command Pattern would be beneficial?
You need to represent a hierarchical relationship between objects.
You have a simple algorithm that doesn't require encapsulation or extensibility.
You need to create objects of varying types based on user input.
You have a graphical user interface with buttons that trigger different actions on a document.
In a text editor, how might the Strategy Pattern be applied to handle different text formatting options (bold, italic, underline)?
The editor could use a factory to create different formatting objects based on user input.
The Strategy Pattern wouldn't be suitable for this scenario.
A single formatting function could handle all styles using conditional statements.
Each formatting style (bold, italic, underline) could be a separate strategy class.
Which of the following is a potential drawback of the Singleton pattern?
It makes unit testing more challenging.
It promotes code reusability.
It simplifies dependency injection.
It reduces the need for global variables.
How does the Factory Method pattern typically handle the instantiation of concrete objects?
It uses a chain of conditional statements within the factory method.
It delegates the instantiation to separate builder classes.
Subclasses override the factory method to provide their own creation logic.
It relies on dependency injection to provide concrete object instances.
How do design patterns contribute to a software project's long-term success?
By making the codebase more adaptable to change
By guaranteeing zero bugs in the code
By eliminating the need for testing
By reducing the need for documentation
Which of these is a common use case for the Observer pattern?
Defining a factory for creating objects.
Implementing a notification system.
Creating a singleton object.
Implementing an undo/redo mechanism.