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Which of the following is a correct example of a behavioral pattern that helps communication?

easy🧠 Conceptual Q12 of 15
LLD - Behavioral Design Patterns — Part 2
Which of the following is a correct example of a behavioral pattern that helps communication?
ASingleton
BObserver
CFactory
DDecorator
Step-by-Step Solution
Solution:

  1. Step 1: Identify behavioral patterns

    Observer is a behavioral pattern that manages communication between objects.

  2. Step 2: Exclude non-behavioral patterns

    Singleton is creational, Factory is creational, Decorator is structural.

  3. Final Answer:

    Observer -> Option B

  4. Quick Check:

    Observer = behavioral pattern [OK]
Quick Trick: Observer is a classic behavioral pattern [OK]
Common Mistakes:
MISTAKES
  • Confusing creational or structural patterns as behavioral
  • Choosing Singleton or Factory incorrectly
  • Not knowing pattern categories

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