試題詳解

 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]] }