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regarding wait(),notify() and notifyAll()..

 
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hi every one i a confused about the topic regarding wait(),notify() and notifyAll().. in cathhy sierra SCJP 6 book it is mentioned in the 9th chapter as objective 4.4 but i have seen many post saying these are not on the exam. then why they are mentioned in book n there are questiones about it. please guys to study me the chapter...
do i need to study them for the exam?
thanks in advance
 
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Exam objectives: http://in.sun.com/training/catalog/courses/CX-310-065.xml
contain the following:


Section 4: Concurrency
....
- Recognize the states in which a thread can exist, and identify ways in which a thread can transition from one state to another.


While calling wait, notify and notifyAll methods change the thread state, you may expect that some questions about these methods can appear on the exam.
 
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amrut sabade wrote:i have seen many post saying these are not on the exam. then why they are mentioned in book n there are questiones about it. please guys to study me the chapter...



Be carefull about what other people says. If you see an information the best form to confirm, it is searching at internet for another source to confirm.
 
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This Topic is not on the exam anymore.
but you must know what they do.
are they static or not.
You must know the basis of each.

Happy Learning
 
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