android HttpURLConnection no result -

i trying webpage android app following code.

try {         //processresponse(searchrequest(edittext.gettext().tostring()));          stringbuilder response = new stringbuilder();         url url = new url("http://www.google.com");         log.v("gsearch", "url :" + url.tostring());          httpurlconnection httpurlconnection = (httpurlconnection) url.openconnection();         if (httpurlconnection.getresponsecode() == httpurlconnection.http_ok) {             log.v("gsearch", "http ok");         }          log.v("gsearch", "loaded");     } catch (exception e) {         log.v("web content error", "e:"+e.getmessage());     } 

however, got following in logcat.

v/gsearch﹕ url :http://www.google.com v/web content error﹕ e:null 

i have permission in manifest.

<uses-permission android:name="android.permission.internet" /> 

please give me hint.

you can idea code

try {             httpurlconnection urlc = (httpurlconnection) (new url(                     "http://www.google.com").openconnection());             urlc.setrequestproperty("user-agent", "test");             urlc.setrequestproperty("connection", "close");             urlc.setconnecttimeout(3000);             urlc.setreadtimeout(4000);             urlc.connect();                  return (urlc.getresponsecode() == 200);             } catch (ioexception e) {                     return (false);                 }             } else                 return false;         } 

here complete class

public class connectiondetector {         private context _context;          public connectiondetector(context context) {             this._context = context;         }          public boolean isconnectingtointernet() {             if (networkconnectivity()) {                 try {                     httpurlconnection urlc = (httpurlconnection) (new url(                             "http://www.google.com").openconnection());                     urlc.setrequestproperty("user-agent", "test");                     urlc.setrequestproperty("connection", "close");                     urlc.setconnecttimeout(3000);                     urlc.setreadtimeout(4000);                     urlc.connect();                     // networkcode2 = urlc.getresponsecode();                     return (urlc.getresponsecode() == 200);                 } catch (ioexception e) {                     return (false);                 }             } else                 return false;          }          private boolean networkconnectivity() {             connectivitymanager cm = (connectivitymanager) _context                     .getsystemservice(context.connectivity_service);             networkinfo networkinfo = cm.getactivenetworkinfo();             if (networkinfo != null && networkinfo.isconnected()) {                 return true;             }             return false;         }     }