Question from the Object-oriented programming - Fundamentals test

Which Design Pattern should I use if I want an object to be notified when another kind of object state changed?

Easy

If I want an object to be notified when another kind of object state changed, which Design Pattern should I use ?

Author: SamuelStatus: PublishedQuestion passed 503 times
Edit
1
Community EvaluationsNo one has reviewed this question yet, be the first!