23.8.1. Legacy Synchronization

Try these first

1. 1.

   What are two examples of legacy synchronized collections?

   Hint

   Think of collections you've previously encountered that ensure thread safety.

2. 2.

   Why might legacy collections lead to performance issues?

   Hint

   Consider situations where many threads are trying to access data.

3. 3.

   Which of the following collections is synchronized?

   • ArrayList
   • Vector
   • HashMap

   Hint

   Think of collections that allow multiple threads to access safely.

4. 4.

   True or False: ConcurrentHashMap is less efficient than Hashtable in high-load scenarios.

   Hint

   Consider how each collection handles concurrent access.

5. 5.

   Evaluate the impact of using a legacy synchronized collection for concurrent access in a banking application. What issues might arise?

   Hint

   Consider high volumes of simultaneous transactions.

6. 6.

   Design an application that would need both legacy synchronous collections and modern alternatives. Explain the rationale behind your choices.

   Hint

   Think about different components that would benefit from thread safety.