[flekso]

Could someone tell me what is the difference in the examples below ?

<%

int foo = 0;

%>

--------

<%!

int foo = 0;

%>

--------

Yeah, I know the first example is using scriplet-tags and the second declaration-tags, but what's the difference or is there any ?

Is there any reasons why should one not declare variables in scriplet-tags ?

[asifmobin]

whenever a jsp file is complied its generating a corresponding servlet class file mean it is finally the servelt processed by engine.if using this <%! %> means all declaration become class member and using <% %> mean varaibles are declared in _jspInit() method.
or u can say one is local and one is class member
This will falls under jspInint() method
so it becomes local variable or a varaible in a function
<%
int foo = 0;
%>
--------
this become the class member variable
<%!
int foo = 0;
%>