servlet - forward post to another server

Hello,

I have the following servlet that is called from an html form using post:

package com.test.web;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class OrderSelect extends HttpServlet {
      public void doPost(HttpServletRequest request,
                                    HttpServletResponse response)
                                    throws IOException, ServletException {
            
            String sSize = request.getParameter("size");
            String sType = request.getParameter("types");
            String sProductInfo = request.getParameter("productinfo");
            String qty = request.getParameter("qty");

            double fPrice;            
            String sProduct;
            
            sProduct = "Type: " + sType + "  Size: " + sSize + "  Shirt: " + sProductInfo;
            
            if(sType == "Unisex")
            {
                  fPrice = 20.00;
            }else{
                  fPrice = 25.00;
            }
            
            if(sSize == "XX-Large + $3.50 USD" || sSize == "XXX-Large + $3.50 USD")
            {
                  fPrice += 3.50;
            }

            //request.setAttribute("price", fPrice.toString());
            request.setAttribute("product", sProduct);
            request.setAttribute("userid", "uid123");
            
            RequestDispatcher view = request.getRequestDispatcher("http://www.123site.com/cf/add.cfm");

            view.forward(request, response);
      }
}

Question 1:
I understand that the above code is meant to forward both the request and the response object to a jsp file, on my local server.  What i need to do (I believe) is post all of these variables to another server using the post method. (I am assuming this is the same as forwarding both the request and the response objects to a remote server.  This server is not using jsp, but just needs a request the same as if i was posting it through an html form.

Question 2:
Why can't I cast a double into a string using: request.setAttribute("price", fPrice.toString()); and how do i do it?

I am new to this so please be gentle.

Thanks for your help.