What does the following code do?

 

SensorManager mgr = (SensorManager) getSystemService(SENSOR_SERVICE);

List<Sensor> sensors = mgr.getSensorList(Sensor.TYPE_ALL);

for (Sensor sensor : sensors) {

        System.out.println(""+sensor.getName());

}

What's the output try {String token = GoogleAuthUtil.getToken(this, email, 'https://www.googleapis.com/auth/devstorage.read_only'); System.out.println(token); } catch (IOException e) { System.out.println('IOException'); } catch (UserRecoverableAuthException e) { System.out.println('UserRecoverableAuthException'); } catch (GoogleAuthException e) { System.out.println('GoogleAuthException'); }

Using a content provider, which operations are able to perform? a) create b) read c) update d) delete

Which widgets help to embed images in activities?

Best way of opening camera as sub-activity?

Correct way to restrict app visibility on Google Play to devices that have a camera?

What is the purpose of the AppCompat library?

The default action resultant when pressing the device back button is to pop the backstack. What is the backstack?

Which is considered best practice according to Google’s Android Development documentation?

What feature of the Google Play Store allows developers to release pre-production builds to testers?

Correct file in which you should request permissions that an app will use?