23.2.1. What is Thread Safety?

Try these first

1. 1.

   What is thread safety?

   Hint

   Think about how many threads can access a resource.

2. 2.

   Name one issue that can arise from non-thread-safe code.

   Hint

   What happens when two threads interact incorrectly?

3. 3.

   What defines a thread-safe class?

   • It runs faster than other classes.
   • It can handle multiple threads without data corruption.
   • It requires more memory.
   • It is always synchronized.

   Hint

   Think about what a thread-safe class aims to achieve.

4. 4.

   True or False: Race conditions can always occur in multi-threaded programs.

   • True
   • False

   Hint

   Reflect on whether shared data exists.

5. 5.

   You have a shared counter being accessed by multiple threads. Write a code snippet that demonstrates a race condition and discuss how it can be resolved.

   Hint

   Consider how threads can interfere with each other when accessing the count variable.

6. 6.

   Describe how you would implement a thread-safe singleton pattern. Provide sample code.

   Hint

   Think about how you can limit instantiation in a multi-threaded environment.