Java object-locked down-exclusive use-given thread

Question

Is it possible that Java object can be locked down for exclusive use by a given thread?

Answer 1

Yes it is possible, you can lock an object by placing it in a "synchronized" block. The locked object is isolated to any thread except the one which explicitly claimed it. If a thread attempts to execute either synchronized method or synchronized statement and is not capable to occur an object's lock, it goes in waiting state until the lock becomes accessible.