多项选择题

Which the three EL expressions, inserted at line 15, are valid and evaluate to "3"? ()

A. ${vals.2 }
B. ${vals ["2"]}
C. ${vals.index }
D. ${vals[index]}
E. ${vals} [index]
F. ${vals.(vals.index)}
G. ${vals[vals[index-1]]}

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热门 试题

单项选择题
GivenaJSPerrorpage,whichimplicitobjectreferstotheuncaughtThrowablethatresultedinthepagebeinginvoked?()

A. Error
B. Exception
C. Throwable
D. Request error
E. Request exception

多项选择题
Which two are true?()

A. The function method must have the signaturepublic: String spin().
B. The method must be mapped to the logical name “spin” in the web.xml file.
C. The function method must have the signature:public String spinIt().
D. The function method must have the signature:public static String spin().
E. The function method must have the signature:public static String spinIT().
F. The function class must be named Spinner, and must be in the package com.example.

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