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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the term 'visibility' refer to in multithreading?
💡 Hint: Think about how threads share information.
Question 2
Easy
What happens if a variable is changed by one thread without synchronization?
💡 Hint: Consider what happens when threads read outdated values.
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 is a visibility problem in multithreading?
- One thread can access memory of another thread
- A thread does not see an updated variable
- Two threads execute in the opposite order
💡 Hint: Think about how threads view shared data.
Question 2
True or False: The volatile keyword guarantees atomicity of variable updates.
- True
- False
💡 Hint: Consider what atomic actions imply.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a multithreaded Java program with a visibility problem, and then modify it to use volatile to solve the issue.
💡 Hint: Make sure you test the initial implementation to observe the issue before applying `volatile`.
Question 2
Given a scenario with multiple threads updating and reading a resource, detail a plan to implement proper synchronization to avoid visibility issues.
💡 Hint: Consider the crucial operations that must be atomic and visible.
Challenge and get performance evaluation