CSE647: Testing and Verification
		     Homework 2 (ver. 15 Sep, 14:20)         Due 22 Sep
			      Scott Stoller

These questions are about Queue.java, available on the course web page.

1.  Consider changing notifyAll to notify in the code for remove().
Is this a good idea?  Justify your answer.

2.  insert() and remove() in Queue.java sometimes do "unnecessary
notifications", i.e., the notified thread finds that the condition 
it is waiting for is still false and calls wait() again.

a.  Modify Queue.java to minimize the situations in which unnecessary
notifications occur.   Document your modifications either with comments 
in the code or with a separate explanation.
  Your modified code for Queue.java should be submitted by email; 
  other parts of this assignment can be submitted by email or hardcopy.

b.  Describe the situations, if any, in which your modified code does
unnecessary notifications.