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JavaAdvanced#concurrency#java8
JavaAdvanced#concurrency
What is the difference between ReentrantLock and synchronized?
ReentrantLock (java.util.concurrent.locks) offers advanced features like tryLock with timeout, interruptible lock acquisition, and fairness policies, whereas synchronized is simpler but less flexible and always blocks indefinitely.
Example
ReentrantLock lock = new ReentrantLock();
if (lock.tryLock(1, TimeUnit.SECONDS)) {
try { /* critical section */ } finally { lock.unlock(); }
}