What are the practical uses for AtomicInteger

Question

I have knowledge that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though?

Answer 1

There are two main uses of AtomicInteger:

• As an atomic counter (incrementAndGet()) that can be used by many threads concurrently

• As a primitive that supports compare-and-swap instruction (compareAndSet()) to implement non-blocking algorithms.