Design Pattern - Presentazione e Autovalutazione

Open Ended

Describe a situation where you solved a problem in an elegant way while developing software. What approach did you use and what was the outcome?

Multiple Choice

Why is it important to use design patterns when developing software?

• They make code more reusable and maintainable.

• They make software run faster.

• They eliminate the need for testing.

• They reduce the cost of hardware.

Multiple Choice

Which of the following is NOT one of the authors of the book 'Design Patterns: Elements of Reusable Object-Oriented Software' published in 1994?

• Erich Gamma

• Richard Helm

• Martin Fowler

• John Vlissides

Open Ended

Explain the main purpose of design patterns in software development and how they benefit developers.

Multiple Choice

Which of the following principles helps to avoid code duplication by ensuring code is written only once?

• KISS (Keep It Simple, Stupid)

• YAGNI (You Aren't Gonna Need It)

• DRY (Don't Repeat Yourself)

• SOLID

Multiple Select

Select all the principles that are part of the SOLID design principles.

• Single Responsibility Principle

• Open/Closed Principle

• Keep It Simple, Stupid

• Dependency Inversion Principle

Fill in the Blank

Fill in the blank: Structural design patterns define how to ___ and combine classes/objects.

Open Ended

Describe how creational patterns help make code more flexible and less dependent on specific implementations. Provide an example from everyday life to illustrate your answer.

Multiple Choice

Which creational pattern is best suited for creating a single global instance that is accessible throughout an application?

• Singleton

• Builder

• Prototype

• Abstract Factory

Multiple Choice

Which of the following statements about the Prototype pattern is correct?

• It creates new objects by cloning existing ones.

• It always creates a new instance from scratch.

• It is used to ensure only one instance exists.

• It is used to create families of related objects.

Open Ended

Compare the Builder and Factory Method patterns in terms of how they handle object creation and flexibility. Provide examples based on the code snippets.

Multiple Select

Select all the structural patterns that help reduce complexity by providing a simplified interface or by sharing data among many objects.

• Facade

• Flyweight

• Decorator

• Adapter

Fill in the Blank

Fill in the blank: The ______ pattern allows you to treat individual objects and compositions of objects uniformly.

Open Ended

Explain how the Adapter and Proxy patterns differ in their intent and provide a scenario where each would be appropriately used.

Multiple Choice

Which structural pattern is best represented by a universal power adapter that allows a European plug to work in a different socket?

• Adapter

• Facade

• Decorator

• Proxy

Fill in the Blank

Fill in the blank: The ______ pattern defines a family of interchangeable algorithms, such as different payment methods in an e-commerce system.

Multiple Select

Select all the patterns that encapsulate a request as an object, useful for undo/redo actions, and change behavior based on internal state.

• Command

• State

• Observer

• Strategy

Multiple Choice

Which of the following behavioral patterns is used to notify multiple objects automatically when the state of one changes?

• Observer

• Strategy

• Command

• State

Multiple Choice

In the context of a hotel, which structural pattern simplifies the work behind the scenes by centralizing requests at the reception?

• Facade

• Adapter

• Composite

• Flyweight

Open Ended

Explain how behavioral patterns help in organizing the flow of actions and communication among participants, using an example from a card game.

Multiple Choice

Which of the following best describes an anti-pattern in software development?

• A solution that seems smart at first but creates more problems over time.

• A technique that always improves code quality.

• A pattern that is recommended for all situations.

• A shortcut that always saves time and effort.

Open Ended

Explain how the 'God Object' anti-pattern can negatively impact code maintainability. Use the examples provided to support your answer.

Multiple Select

Which of the following are examples of anti-patterns mentioned in the slides?

• God Object

• Spaghetti Code

• Golden Hammer

• Factory Method

Fill in the Blank

A key principle to avoid anti-patterns is to keep the code ___ and modular.

Multiple Choice

What is the main advantage of using design patterns according to the slides?

• They provide a common language for developers to communicate solutions efficiently.

• They guarantee bug-free code.

• They eliminate the need for documentation.

• They make code run faster.

Open Ended

How do you think applying design patterns can help you solve problems more elegantly in your software projects?

Multiple Choice

What is the main objective of learning about design patterns in software development?

• To memorize all design patterns by name

• To recognize, understand, and apply design patterns in software development

• To avoid using any patterns in code

• To focus only on user interface design