Put each of these tags in a jsp file. Then look at the generated java code.
You'll see the difference.
<%! %> is a _declaration_.
<% %> is a _scriptlet_.
_declaration_ declares things that are in the resulting servlet class.
E.g. class member variables or methods.
_scriptlet_ is code that gets expanded into the service method.
Soooo.. this means that variables in the _declaration_ are shared for
all requests, while the _scriptlet_ variables are instantiated
on the stack for each request.
See page 33 of Professional JSP from wrox press for more info.
-----Original Message-----
From: SANDEEP UPPAL <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Monday, September 25, 2000 1:47 AM
Subject: Re: difference between <%!...%> and <%....%>
>all the processing code we write is in jsp_Service method so how does it
>make a difference.
>
>regards,
>
>Sandeep
>----- Original Message -----
>From: Shibu Up <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Monday, September 25, 2000 1:56 PM
>Subject: Re: difference between <%!...%> and <%....%>
>
>
>> Hi,
>> <! declaration is for class level variable declaration ( Ps. JSP is
>finally
>> becomes a servlet class). <% is for normal local variables in the
>> jsp_Service method.
>>
>> -Shibu
>>
>>
>>
>>
>>
>> SANDEEP UPPAL <[EMAIL PROTECTED]> on 09/25/2000 02:55:55 PM
>>
>> Please respond to A mailing list about Java Server Pages specification and
>> reference <[EMAIL PROTECTED]>
>>
>> To: [EMAIL PROTECTED]
>> cc: (bcc: U P Shibu/LTITL)
>>
>> Subject: difference between <%!...%> and <%....%>
>>
>>
>>
>> both <%!...%> and <%.....%> can be used for declaring variables.
>>
>> What is the difference between both and which to use ?
>>
>> regards,
>>
>> Sandeep Uppal
>>
>>
>===========================================================================
>> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
>JSP-INTEREST".
>> Some relevant FAQs on JSP/Servlets can be found at:
>>
>> http://java.sun.com/products/jsp/faq.html
>> http://www.esperanto.org.nz/jsp/jspfaq.html
>> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
>> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
>>
>>
>===========================================================================
>> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
>JSP-INTEREST".
>> Some relevant FAQs on JSP/Servlets can be found at:
>>
>> http://java.sun.com/products/jsp/faq.html
>> http://www.esperanto.org.nz/jsp/jspfaq.html
>> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
>> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
>>
>
>===========================================================================
>To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
>Some relevant FAQs on JSP/Servlets can be found at:
>
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
>
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
