Android how to get HTTP 401 response

gistfile1.java

final HttpGet loginDetailsGet = new HttpGet("{your URL to pass login details to}");
loginDetailsGet.addHeader("accept", "application/json");

final HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 5 * 1000);

final Credentials credentials = new UsernamePasswordCredentials(username, password);

final DefaultHttpClient defaultHttpClient = new DefaultHttpClient(httpParameters);
defaultHttpClient.getCredentialsProvider().setCredentials(new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT), credentials);

final HttpResponse serverResponse = defaultHttpClient.execute(loginDetailsGet);