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removeAttribute doubt from mock exam

Bobby Sharma
Ranch Hand

Joined: Mar 18, 2008
Posts: 574
    
    1

Here the question :

Given that scoped attribute cart exist only in user's session,which two
taken independently ,ensure that scoped attribute cart no longer exits?

A)<c:remove var="cart"/>
B)<c:remove var="${cart}"/>
C)<c:remove scope="session">cart</c:remove>
D)<c:remove scope="session" var="cart"/>
E)<c:remove scope="session">${cart}</c:remove>
According to mock exam's ,the answer is C and D.And it explains that
removeAttribute default is page scope.So B doest not work and incorrect.

I tested the code and found out the real answer should be B and D.
Because c give compilation error ,declaring that body content is empty.

please explain which answers are correct.

best regards,
omi


Back to Java , again.
Christophe Verré
Sheriff

Joined: Nov 24, 2005
Posts: 14687
    
  16

Definitely not C. Why did you choose B ? What about A ?


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Bobby Sharma
Ranch Hand

Joined: Mar 18, 2008
Posts: 574
    
    1

sorry chris ,I chosen actually A and mistakenly typed B.

thanks for your reply.
 
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