Head First 2nd Edition Ch7 #14 Mock Exam P.341

[Felix Li]

Would like to know if the correct answer for C should be:

javax.servlet.ServletContext
javax.servlet.jsp.JspWriter
javax.servlet.http.HttpServletRequest
javax.servlet.http.HttpServletResponse
javax.servlet.http.HttpSession

instead of:

javax.servlet.ServletContext
javax.servlet.jsp.JspWriter
javax.servlet.ServletRequest
javax.servlet.ServletResponse
javax.servlet.http.HttpSession

Thanks

[Rufus Addis]

I'd agree with you, as the implicit request / response objects in JSP have to be of the http variety!

Worth submitting as an errata:

http://oreilly.com/catalog/9780596516680/errata/

Rufus.

[Felix Li]

Thanks Rufus, I just did.

[Ranil Liyana Arachchige]

Hi,

I think the answers are correct, the mock exam question asks for the types of the jsp implicit objects,so in that case , request , response are types of javax.servlet.http.HttpServletRequest , javax.servlet.http.HttpServletResponse respectively. But those are protocol dependent sub types of the super type javax.servlet.ServletRequest , javax.servlet.ServletResponse. please refer to the JSP 2.0 spec section 1-41. it clearly explains that.

hope this would be helpful

regards,
Ranil

[Felix Li]

Interesting, you are right Ranil.

Thanks for clearing up.

[Ranil Liyana Arachchige]

no problem