JSP notes

http://www.jsptut.com/Declarations.jsp

Understand the importance of
<%= %>
To embed single line expression in the code

<% %>
To write a code block

<%! %>
Declaration to enclose your declarations

<%@ %>----> Importing some java library
for example: <%@ page language="java" import="java.sql.*" %>

Variables should not be declared as global otherwise there would be synchronization issues and performance will be hurt. Ideally all the variables should go into request or session object.