notify and notifyAll

This is regarding question number 37 in the exam at site http://www.javaprepare.com/quests/test.html
javaprepare.com - Sample test 1 exam.
The question is :
Which of the following statements are true. Select all correct
answers.
(a)The wait method defined in the Thread class, can be used to convert
a thread from Running state to Waiting state.
(b) The wait(), notify(), notifyAll() must be executed in sybchronized
code.
(c) The notify() method can be used to signal and move waiting threads
to ready-to-run state.
(d) The Thread class is an abstract class.
Answer at site to this question is b,c . But I have a doubt here.
The notify method can be used to signal and move only one(any one out
of many if there are many) waiting thread not threads to ready-to-run
state. notifyAll() is used to signal and move waiting threads to
ready-to-run state. Please clarify !!!

There are many more errors in the site mentioned by you. Watch out.
[This message has been edited by rajsim (edited August 07, 2000).]

Can anybody please verify why a is not a right answer?
Thanx

Why a is not right. Is it bcoz when wait() is applied to a running thread, it goes to ready state not waiting state. Please clarify.

Dear All,
wait() method is not implimented in the in the thread class, It should implement in the in object class.
notify() will move only one thread form waiting to ready and notifyall () will move all waiting threads to Ready state
I hope it is clear......

Thanks

[This message has been edited by Netla Reddy (edited September 03, 2000).]