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how to get lock of an object

 
Ranch Hand
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Before a thread calls wait() method on an object , thread has to have lock for that object .
For getting lock for that object , thread can call synchronized method on that object ( please tell me , is there any other way of getting lock for an object & this method is right or wrong )
If any thread calls notify() method on that object , then the thread which is waiting in the waiting queue of that object will wake up ...

Please comments ...

Thanks a lot .
 
drifter
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Check the API.

In a previous post in response to a similar question I pointed out that

Object api on wait method:


This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.
...
IllegalMonitorStateException - if the current thread is not the owner of the object's monitor.



Object api on notify method:


This method should only be called by a thread that is the owner of this object's monitor. A thread becomes the owner of the object's monitor in one of three ways:

By executing a synchronized instance method of that object.
By executing the body of a synchronized statement that synchronizes on the object.
For objects of type Class, by executing a synchronized static method of that class.

 
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