Software Architecture · interview question
In a Java application using the Observer Pattern, how should you manage the list of observers to ensure thread safety?
Multiple choiceMediumchapter-13-curatedpremiumsoftware-architectureobserver-pattern
Answer and explanation
Correct answer
D. Synchronize access to the observer list.
Why
Synchronizing access to the observer list ensures that additions, removals, and notifications are thread-safe. This prevents concurrent modifications that could lead to inconsistent states or exceptions.
Test yourself on Software Architecture
A free test with instant, explained results. No account needed.
More Software Architecture questions
- You notice that your Observer Pattern implementation in a Java application results in redundant notifications. How can…
- In an e-commerce platform, a developer creates a complex inheritance hierarchy to manage product types and their…
- How does the Adapter pattern differ from the Decorator pattern in terms of functionality?
- In implementing the Observer Pattern, which method is typically called to notify observers of a change?
- In implementing the Observer Pattern in Java, what is a common way to handle an observer throwing an exception during…
- Which method must be implemented by a class acting as an observer in Java's Observer Pattern?