Which of these is NOT a common use case for the Flyweight pattern?
Game development for managing large numbers of units or particles.
Text editors handling character formatting.
Representing and rendering a complex 3D model with shared textures.
Implementing a logging system with different log levels.
Which principle of object-oriented design does the State Pattern primarily promote?
Single Responsibility Principle
Liskov Substitution Principle
Open/Closed Principle
Dependency Inversion Principle
How does the Composite pattern promote code reusability?
By providing a common interface for interacting with simple and complex objects.
By ensuring that a class has only one instance.
By encapsulating object creation logic.
By allowing objects to change their behavior at runtime.
What is a potential drawback or consideration when using the Iterator Pattern?
It is not suitable for all types of collections.
It leads to tight coupling between classes.
Increased code complexity in some cases.
It violates the Single Responsibility Principle.
What is a key advantage of encapsulating state-specific behavior in separate classes in the State Pattern?
It reduces the number of classes needed compared to other patterns.
It eliminates the need for interfaces or abstract classes.
It makes the code more concise and harder to understand.
It improves code organization and allows for easier addition of new states.
Which of these is a real-world scenario where the State Pattern is beneficial?
Validating user input in a form.
Implementing a simple counter.
Representing the different stages of an order in an e-commerce system.
Sorting a list of elements in ascending order.
In the Builder Pattern, what is the role of the 'Director'?
It provides an interface to access the built object.
It constructs the actual object using the Builder.
It defines the abstract steps for building the object.
It represents the complex object being built.
What is the primary goal of the Prototype Pattern?
To provide a way to access elements of an aggregate object sequentially.
To ensure a class has only one instance.
To define a family of algorithms, encapsulate each one, and make them interchangeable.
To avoid costly creation of objects by copying existing ones.
Which of these scenarios best exemplifies the use of the Prototype Pattern?
Creating multiple instances of game characters with slightly varying attributes.
Logging user actions in a system.
Implementing undo/redo functionality in a text editor.
Managing the state of a traffic light system.
A Remote Proxy is typically used for:
Controlling access to the real subject based on user roles.
Providing a local representation of an object in a different process.
Creating a placeholder for an object that hasn't been fully loaded.
Caching the results of expensive operations for performance improvement.