Reply below.
> ----------
> From: Tom John[SMTP:[EMAIL PROTECTED]]
> Reply To: A mailing list for discussion about Sun Microsystem's Java
> Servlet API Technology.
> Sent: Wednesday, November 03, 1999 3:04 AM
> To: [EMAIL PROTECTED]
> Subject: setContentType
>
> Hi,
>
> What I wan't to know is that by any chance if I want to use the
> setContentType twice
>
Broadly speaking, content type tells the client (the browser in this case)
the type of information following.
In case of an html document you would set it to "text/html". You can set the
content type to any valid MIME
type. You can find more information on MIME at -
http://www.hunnysoft.com/mime/
> How can I do it.It gives (have a look at the following
> code)
> errors but if I pass the res object(which is declared in UdpateExam)as
> getMaxExamId(HttpServletResponse res) it works. Why is that?
>
> Other Question is,
> Let me know what is the meaning of setContentType can be used once. Does
> it
> to a particular object
> or what.
>
>
> import javax.servlet.*;
> import javax.servlet.http.*;
>
> class TimeTable{
>
> ....
> ....
>
> //---------------
> public long getMaxExamId() throws ServletException,IOException
> {
> ...
> ...
> HttpServletResponse res1=null;
> res1.setContentType("text");
>
// You are setting the HttpServletResponse object 'res1' to null. You cannot
invoke any methods on a null object.
> PrintWriter out=res.getWriter();
> .......
>
> ......
>
>
> }
> //----------------
>
>
> public void UdpateExam(HttpServletResponse res) throws
> ServletException,IOException
> {
> ResultSet rs=null;
> res.setContentType("text/html");
> PrintWriter out=res.getWriter();
>
The above will work as long as the HttpServletResponse object being passed
in (res) is good (not null).
> ...
>
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