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Suppose you have 2 threads (Thread-1 on object1 and Thread-2 on object2). Thread-1 is in synchronized method1(), can Thread-2 enter synchronized method2() at same time?
Java Interview Questions and Answers (part 4)
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48. Suppose you have 2 threads (Thread-1 on object1 and Thread-2 on object2). Thread-1 is in synchronized method1(), can Thread-2 enter synchronized method2() at same time?
Yes, here when Thread-1 is in synchronized method1() it must be holding lock on object1’s monitor. Thread-2 will acquire lock on object2’s monitor and enter synchronized method2().
Likewise, Thread-2 even enter synchronized method1() as well which is being executed by Thread-1 (because threads are created on different objects).
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