23.5.2. When to Use volatile?

Try these first

1. 1.

   What does the volatile keyword ensure?

   Hint

   Think about how multiple threads see changes.

2. 2.

   Is using volatile suitable for incrementing a counter?

   Hint

   Consider what happens during check-then-act operations.

3. 3.

   What is the primary purpose of the volatile keyword?

   • Ensure atomicity
   • Ensure visibility
   • Display output

   Hint

   Think about how threads interact with variables.

4. 4.

   Can volatile variables be used safely for compound operations like count++?

   • True
   • False

   Hint

   Remember what makes an operation atomic.

5. 5.

   Create a Java program that demonstrates the use of volatile for a simple flag to control thread execution.

   Hint

   Think about how threads can check the running state.

6. 6.

   Discuss a situation where using volatile would lead to a race condition, providing an example.

   Hint

   Reflect on the nature of shared resources.