Parameter Retrieving

<%!
        public boolean empty(String s)
	{
		if(s== null || s.trim().equals(""))
			return true;
		else
			return false;
	}
        %>

        <%Enumeration paramNames = request.getParameterNames();
	Map<String,String> params= new HashMap<String,String>();
    	while(paramNames.hasMoreElements())
	{
      		String paramName = (String)paramNames.nextElement();

      		String paramValue = request.getParameter(paramName);

		params.put(paramName,paramValue);
	}
        System.out.println("##### check 11111 "+params.get("burns1"));

    %>
<html>
    <body>


        <FORM  action="test2.jsp" method="post">

            <INPUT TYPE="text" NAME="burns1" value="<%= (empty(params.get("burns1"))) ? "" : params.get("burns1") %> "/>
    <INPUT TYPE="text" NAME="burns2" >
    <input type="submit" value="submit"/>

	</FORM>

    </body>
</html>