rest - Call HTTPS web service from android device with header to validate -

i want call https web service android device.which contain header validate data on server.i don't know how call https web service writen in java.if 1 explain steps me.thanl !

please check method:

private static header[] headers; private string executerequest(httpget request)         throws sockettimeoutexception {     string responce = null;      try {          httpparams httpparameters = new basichttpparams();         // set timeout in milliseconds until connection         // established.         int timeoutconnection = 120000;         httpconnectionparams.setconnectiontimeout(httpparameters,                 timeoutconnection);         // set default socket timeout (so_timeout)         // in milliseconds timeout waiting data.         int timeoutsocket = 120000;         httpconnectionparams.setsotimeout(httpparameters, timeoutsocket);         httpclient httpclient = new defaulthttpclient(httpparameters);         httpresponse httpresponse = httpclient.execute(request);         // obtain , set headers when login         headers = null;         headers = httpresponse.getallheaders();         responsecode = httpresponse.getstatusline().getstatuscode();         responce = entityutils.tostring(httpresponse.getentity());     } catch (parseexception e) {         e.printstacktrace();     } catch (ioexception e) {         e.printstacktrace();     }     return responce;  }  header previousheader;  // used add headers manually got response // done automatically @suppresswarnings("unused") private httpurirequest addheaders(httpurirequest request) {     (int = 0; headers != null && < headers.length; i++) {              request.setheader(headers[i].getname(), headers[i].getvalue());      }     // request.addheader("content-length", "");     return request;  }