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Diffcult Mock Question from ?K

 
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Given the definition of SomeObject and that an instance of SomeObject is bound as a session attribute:
8. package com.example:
9. public class SomeObject implements
10. javax.servlet.http.HttpSessionBindingListner{
11. // more code here
12. }
Which is true?
A. Only single instance of MyObject may exist within a session.
B. The unbound method of the MyObject instance is called when the session to which it is bound to times out.
C. The com.example.MyObject must be declared as a servlet event listener in the web DD
D. The valueUnbound method of the MyObject instance is called when the session to which it is bound times out.
 
Alec Lee
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MyObject=SomeObject

Note: I modified the original question.
 
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D is the right answer
 
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Originally posted by B Sathish:
D is the right answer



Hi Alec, maybe I'm losing some detail, but why did you consider this question difficult?
I agree with Sathish the answer is D and it seems to be an easy question.
[ September 28, 2005: Message edited by: Alexandre Cervieri ]
 
Consider Paul's rocket mass heater.
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