java - Error in HttpURLConnection - openConnection -

i having following java function check website responce code:

url u = null;     try {     u = new url("http://bforball.com");     httpurlconnection huc =  ( httpurlconnection ) u.openconnection ();      huc.setrequestmethod ("get");      huc.connect () ;  } 

i have imported below:

import java.net.httpurlconnection; 

but when compile code getting warning message near

u.openconnection

warning message:

connot find symbol symbol: mehod openconnection() location:variable u of type url 

what doing wrong?

i guess have wrong import on url class. have import url correct package :

import java.net.url; 

it has method openconnection()