Additional Notes
What happens if you modify a key during iteration in ConcurrentHashMap?
Track: Java
Topic: Concurrency
Focus: Concurrent Collections
Java: Concurrent Collections
Answer
ConcurrentHashMap allows concurrent modifications during iteration.
Unlike other maps, ConcurrentHashMap is designed to handle concurrent modifications during iteration safely. It does not throw ConcurrentModificationException but provides weakly consistent iterators. This means changes made during iteration are reflected in real-time, which is useful in dynamic environments like real-time stock updates during a sale.
Unlike other maps, ConcurrentHashMap is designed to handle concurrent modifications during iteration safely. It does not throw ConcurrentModificationException but provides weakly consistent iterators. This means changes made during iteration are reflected in real-time, which is useful in dynamic environments like real-time stock updates during a sale.
Topics: Concurrency Concurrent Collections Java