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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What Java keyword ensures that changes to a variable are visible across multiple threads?
💡 Hint: Think of a keyword that starts with 'v'.
Question 2
Easy
What is the main problem if a variable is not declared volatile in a multithreading context?
💡 Hint: Consider what happens when threads work with copies of data.
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 does the volatile keyword guarantee in Java?
- It prevents all memory leaks
- It makes a variable accessible to all threads
- It ensures visibility of changes across threads
💡 Hint: Think of what happens when a variable is marked as volatile.
Question 2
True or False: Using synchronized methods can affect the visibility of instance variables.
- True
- False
💡 Hint: Consider how locks work in synchronization.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a multithreaded application where a boolean global variable controls a thread's execution. Design a simple code snippet that demonstrates both visibility issues and fixes using volatile.
💡 Hint: Reflect on how the variable interacts with multiple threads.
Question 2
Write a scenario involving two threads that demonstrate a race condition due to improper visibility practices and suggest a solution.
💡 Hint: Think about how simultaneous access could lead to errors.
Challenge and get performance evaluation