Practice What Is the Java Memory Model? - 20.1.1 | 20. Java Memory Model and Thread Safety | Advance Programming In Java
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20.1.1 - What Is the Java Memory Model?

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the Java Memory Model define?

💡 Hint: Think about how threads share variables.

Question 2

Easy

What happens if a variable is not declared volatile?

💡 Hint: Consider how threads see updated 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 does the Java Memory Model (JMM) primarily address?

  • Memory allocation
  • Thread interaction
  • Garbage collection

💡 Hint: Think about how threads access shared resources.

Question 2

True or False: The JMM guarantees that all changes made by one thread will always be visible to others immediately.

  • True
  • False

💡 Hint: Recall the conditions for visibility.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a multithreaded application where two threads are updating a shared boolean variable without synchronization. Describe potential outcomes and how you would apply the JMM principles to avoid issues.

💡 Hint: Focus on how updates to shared variables can affect execution.

Question 2

Write code demonstrating improper usage of shared variables resulting in race conditions. Then, modify the code to ensure thread safety using the principles of the Java Memory Model.

💡 Hint: Think about how thread synchronization can control access to shared resources.

Challenge and get performance evaluation