2017年11月29日 星期三

QUESTION 3

Given:
11. <%
12. request.setAttribute ("vals", new String[] {"1", "2", "3", "4"});
13. request.setAttribute ("index", "2");
14. %>
15. <% - - insert code here - - %>
Which three EL expressions, inserted at line 15, are valid and evaluate to "3"? (Choose three)
A. ${vals.2}
B. ${vals ["2"] }
C. ${vals.index}
D. ${vals[index] }
E. ${vals} [index]
F. ${vals. (vals.index) }
G. ${vals [vals[index-1]] }


Correct Answer: BDG

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