intermediateMultithreading & Concurrency286 of 436
Difference between synchronized, Lock and Atomic classes.
Tests whether you place each on the right trade-off curve: synchronized is simple JVM-managed mutual exclusion, Lock (ReentrantLock) adds tryLock/fairness/interruptibility at the cost of manual unlock discipline, and Atomic classes use lock-free CAS for the fastest path when only a single variable's atomicity matters.
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