Practice Key Concepts in the JMM - 20.2 | 20. Java Memory Model and Thread Safety | Advance Programming In Java
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20.2 - Key Concepts in the JMM

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does it mean when a variable is declared volatile?

💡 Hint: Think about visibility and shared access.

Question 2

Easy

Are simple read and write operations atomic in Java?

💡 Hint: Focus on basic data types.

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 the effect of declaring a variable as volatile?

  • Changes to the variable are visible to all threads immediately.
  • The variable cannot be modified once set.
  • Only one thread can access the variable at a time.
  • It does not affect how other threads see the variable.

💡 Hint: Think about how visibility operates with volatile variables.

Question 2

True or False: Atomic operations can be interrupted.

  • True
  • False

💡 Hint: Consider what makes operations atomic.

Solve 3 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Implement a scenario using Java threading where race conditions could occur. Describe how you would mitigate the race condition.

💡 Hint: Think about areas where shared data might be changed by multiple threads.

Question 2

Analyze the following Java code snippet:

public class Counter {
    private int count = 0;
    public void increment() {
        count++;
    }
}

What are the potential issues, and how would you resolve them?

💡 Hint: Consider solutions that enforce mutual exclusion.

Challenge and get performance evaluation