Flashcards

Quick study sessions to strengthen memory and retain key concepts.

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Java: Decorator Pattern

Front

What are the trade-offs between using Decorators and other design patterns like Strategy?

Decorators add behavior, while Strategy changes the behavior. Decorators are used to add additional responsibilities to an object…

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Java: Decorator Pattern

Front

How does the Decorator pattern support the Open/Closed Principle?

By allowing behavior extension without modifying existing code. The Open/Closed Principle states that software entities should be open…

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Flashcard Study

Java: Decorator Pattern

Front

Why is the Decorator pattern considered an alternative to subclassing?

It provides a flexible alternative to adding new behaviors. The Decorator pattern allows you to add functionality at…

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Flashcard Study

Java: Decorator Pattern

Front

What design considerations should you keep in mind when chaining decorators?

Order of decorators can affect behavior. Frame the concept in practical terms so you can explain it during…

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Flashcard Study

Java: Decorator Pattern

Front

How does the Decorator pattern enhance code maintainability?

By isolating new functionality into separate classes. By encapsulating new behaviors in decorator classes, the Decorator pattern keeps…

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Flashcard Study

Java: Decorator Pattern

Front

How would you explain a key benefit of using the Decorator pattern over direct modification in an interview?

It allows adding features without altering existing code. The Decorator pattern provides a way to extend functionality without…

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Flashcard Study

Java: Decorator Pattern

Front

What are potential pitfalls when implementing multiple decorators?

Increased complexity and potential performance overhead. While decorators help manage behavior dynamically, using many of them can lead…

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Flashcard Study

Java: Decorator Pattern

Front

What problem does the Decorator pattern solve that subclassing cannot?

It prevents subclass proliferation by composing behaviors. Subclassing can lead to a combinatorial explosion of classes when you…

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Flashcard Study

Java: Decorator Pattern

Front

Why is sharing the same interface critical in the Decorator pattern?

It ensures compatibility between the base object and its decorators. By maintaining the same interface, decorators can be…

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Flashcard Study

Java: Decorator Pattern

Front

How does the Decorator pattern help manage dynamic behavior in objects?

It allows behavior to be added at runtime without modifying original object code. The Decorator pattern enables you…

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