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Which options correctly pass two attributes to a custom tag ?

Kosala W.Abayagunawardene
Ranch Hand

Joined: Dec 15, 2007
Posts: 47

I found this question on enthuware Question ID: 1077656812758
Which of the following options correctly pass two attributes to a custom tag?

Select 3 correct options
a <prefix:sometag 'val1' 'val2' />


b <prefix:sometag ${'val1'} ${'val2'} />


c <prefix:sometag attrA='val1' attrB='val2' />


d <prefix:sometag attrA=${"val1"} attrB=${"val2"} />


e <prefix:sometag>
<jsp:attribute name='attrA' value='val1' />
<jsp:attribute name='attrB' value='val2' />
</prefix:sometag>


f <prefix:sometag>
<jsp:attribute name='attrA'>val1</jsp:attribute>
<jsp:attribute name='attrB'>val2</jsp:attribute>
</prefix:sometag>

Answers are given as c,d,and f.

could someone please explain each answer in detail as it is bit confusing to me.(ASAP)Thanks


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Vijitha Kumara
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Joined: Mar 24, 2008
Posts: 3825

You can pass data to the tag handler in the form of attributes which are processed by the tag handler and do whatever it wants. Ther's only a syntax difference between them. <jsp:attribute> It's just another way of setting attributes in a tag instead of directly putting them inside the tag (as with c & d options). Also <jsp:attribute> has the advantage of place itself in the body even the body content for that tag is declared to be empty.


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Kosala W.Abayagunawardene
Ranch Hand

Joined: Dec 15, 2007
Posts: 47

Vijitha Kumara wrote:You can pass data to the tag handler in the form of attributes which are processed by the tag handler and do whatever it wants. Ther's only a syntax difference between them. <jsp:attribute> It's just another way of setting attributes in a tag instead of directly putting them inside the tag (as with c & d options). Also <jsp:attribute> has the advantage of place itself in the body even the body content for that tag is declared to be empty.



thanks for that
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Which options correctly pass two attributes to a custom tag ?