Sorry the sample program is as :
<%@ page language="java" session="true" %>
<%
String pageCommand = null;
final String AD_OMMAND = new String("addname");
else if (this.getParameter( request, AD_OMMAND) != null)
pageCommand = AD_OMMAND;
%>
What this.getParameter( request, AD_OMMAND) executes/stands for/refers to ?