When to use requestScope in jstl?

Question

A jstl variable is set in request scope in a jsp

This variable is accessed from

Answer 1

Within my research (I am also new one for jstl), request scope can set values to request page from response page for example assume that we have a page called index.jsp and its action page is index_action.jsp

if we, set values to the action page

<%  request.getRequestDispatcher("index.jsp").forward(request, response); %>

(// I created nme variable and set its value as Janaka aravinda. and back to reload request page(index.jsp) )

Now we can call nme in index.jsp nme variable as follow Request value