Software Architecture · interview question
In a Java e-commerce application, you need to notify multiple services about a completed order without coupling them to the order processing logic. Which design pattern should you use?
Multiple choiceEasychapter-13-curatedpremiumsoftware-architectureobserver-pattern
Answer and explanation
Correct answer
D. Observer Pattern
Why
The Observer Pattern allows the order processing logic to notify multiple services (observers) about a completed order without being tightly coupled to them. This promotes loose coupling and flexibility.
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