Cookie类的问题

Question

这是他自己写的函数。你看一下他引用了哪些class，然后去找函数的说明

Answer 1

Cookie theCookie = null;
        Cookie cookies[] = request.getCookies();
        if (cookies != null) {
          for(int i=0, n=cookies.length; i < n; i++) {
            theCookie = cookies[i];
            if (theCookie.getName().equals("cart_id")) {
              try {
                cart_id.setAttribute("name",theCookie.getValue());
              } catch (NumberFormatException ignored) {
              }
                 break;
              }
            }
          }