Design Patterns – Page 9 – Sharp: NCLEX, Java & Python

Java: Decorator Pattern

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

What problem does the Decorator pattern solve that subclassing cannot?

What are potential pitfalls when implementing multiple decorators?

How does the Decorator pattern add new behavior to an object?

What are the tradeoffs of using the Decorator pattern?

How can the Decorator pattern help avoid subclass explosion?

What common mistake should you avoid when implementing decorators?

What does a Decorator pattern look like in Java?

How does the Decorator pattern adhere to the Open/Closed Principle?

How do you ensure performance when using multiple decorators?