wait,sleep & yield

All the three functions wait, sleep and yield in java are related to threads but all of them do not belong to thread class. It is often confusing to distinguish between these three. Here is a quick difference between wait, sleep and yield functions:

	Wait	Sleep	Yield
1.	Method of class Object	Method of class Thread	Method of class Thread
2.	Non – Static	Static	Static
3.	Not invoked on a thread instance	Invoked on a thread instance	Invoked on a thread instance
4.	Moves the thread to “wait’ state	Moves the thread to “wait” state	Moves the thread to “ready” state
5.	Thread loose the ownership of the lock	Thread doesn’t loose the ownership of the lock	Thread doesn’t loose the ownership of the lock