I have tried to write code that includes service to remember me in jsp and servlet by using cookies but do not work Can anyone help me?

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.*;
import javax.servlet.http.*;
public class Servlet1 extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=windows-1256";
      
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    }
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response) throws ServletException,
                                                           IOException {
   PrintWriter out = response.getWriter();      
             n sq=new n();
            sq.S(request.getParameter("id"),request.getParameter("name"),request.getParameter("password"),request.getParameter("country"),request.getParameter("Sex"),request.getParameter("emaill"));
          RequestDispatcher rd=request.getRequestDispatcher("untitled1.jsp");  
            rd.forward(request, response);
         }
    public void doPost(HttpServletRequest request,
                      HttpServletResponse response) throws ServletException,
                                                           IOException {
                    n sq=new n();
                    int reqno=0;
                    
        PrintWriter out = response.getWriter();
      String n=request.getParameter("username");
         String p=request.getParameter("password");
                    HttpSession session = request.getSession(false);  
                     if(session!=null)  
                    session.setAttribute("name", n);
               /*     String e=request.getParameter("email");
                    String paa=request.getParameter("pass");
                    String cp=request.getParameter("cpass");*/
                                      
                 
             if(sq.validate(n, p)){    
                RequestDispatcher rd=request.getRequestDispatcher("welcome.jsp");    
                rd.forward(request,response);  
           
                        if(reqno==0){
                        if(request.getCookies()!=null){
                                 Cookie []cook=request.getCookies();
                                 for(int c=0;c<cook.length;c++){>
                                     if(cook[c].getName().equals("username"));
                                 {
                                      RequestDispatcher rd1=request.getRequestDispatcher("welcome.jsp");    
                                      rd1.forward(request,response);  
                                          n=cook[c].getValue();
                                          break;
                                  }
                        }  reqno++;  
                               }
                             }                                  
             Cookie u=new Cookie("username",n);
             if(request.getParameter("remember").equals("on")){
             u.setMaxAge(60*60*24*356);
                  response.addCookie(u);
                  
                }
                    }  
                    else{  
                request.setAttribute("q", "done");
             RequestDispatcher rd=request.getRequestDispatcher("login.jsp");    
              rd.include(request,response);   
                out.print("<p style="\"color:red\"">Sorry username or password error</p>"); 
            }                      
                }
    }