5. What REALLY happens to your JSP code

Container translate your JSPcode into a Servlet.
Note : IF you want to see the generated servler code from Tomcat :
yourTomcatHomeDir/work/Catalina/yourServletName/yourWebAppName/org/appache/jsp

All Scriptlet & Expression code lands in a service() method. i.e : varibles declared in a scriptlet are always LOCAL variable.