23.8. Thread-Safe Collections

Try these first

1. 1.

   What is a thread-safe collection?

   Hint

   Think about collections that allow multiple read/write operations.

2. 2.

   What does ConcurrentHashMap improve upon compared to Hashtable?

   Hint

   Consider how many threads can use it at once.

3. 3.

   Which of the following is an efficient thread-safe collection?

   • Hashtable
   • ConcurrentHashMap
   • Vector

   Hint

   Consider which collection allows more concurrency.

4. 4.

   True or False: CopyOnWriteArrayList performs better in write-heavy scenarios.

   • True
   • False

   Hint

   Think about how it handles modifications.

5. 5.

   Compare the performance implications of using a Hashtable versus a ConcurrentHashMap in a high-traffic web application.

   Hint

   Think about what happens to access times.

6. 6.

   Design a multithreaded application that requires both read-heavy and write-heavy operations. Which collections will you use, and how will they optimize performance?

   Hint

   Consider the roles of read and write in the application.