Practice Atomic Variables (java.util.concurrent.atomic) - 20.4.3 | 20. Java Memory Model and Thread Safety | Advance Programming In Java
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20.4.3 - Atomic Variables (java.util.concurrent.atomic)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the AtomicInteger class do?

💡 Hint: Look for operations that are performed thread-safely.

Question 2

Easy

Is it necessary to use synchronization when using atomic variables?

💡 Hint: Think about the benefits of atomic operations.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What class provides lock-free thread-safe operations on integers?

  • AtomicBoolean
  • AtomicInteger
  • SynchronizedInteger

💡 Hint: Focus on the class that operates specifically on integers.

Question 2

True or False: Atomic variables require explicit synchronization to ensure thread safety.

  • True
  • False

💡 Hint: What do you remember about atomic operations?

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a banking system where multiple threads can securely increment a user's balance using AtomicInteger. Discuss how you would manage the account transactions.

💡 Hint: How can you ensure each operation finishes without interference from others?

Question 2

Given a counter that can be safely incremented by several threads, illustrate how using synchronized methods could differ from using AtomicInteger in terms of performance. What would you observe in a high-load scenario?

💡 Hint: What are the risks of having thread contention?

Challenge and get performance evaluation