Java object's lock

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Java object's lock
1 Answer(s) 2 years and 7 months ago
Posted in : Java Interview Questions

What is an object's lock and which object's have locks?

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October 27, 2010 at 12:10 PM

Hi,

Here is the answer.

An object's lock is a mechanism that is used by multiple threads to obtain synchronizedaccess to the object. A thread may execute a synchronized method of an object only afterit has acquired the object's lock. All objects and classes have locks. A class's lock isacquired on the class's Class object.

Thanks.

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