code: public void setSelectedCountry(@NonNull Country country) {
          Log.d(TAG, "Selected country changed to " + country.getDisplayName());
          countryNameTextView.setText(country.getDisplayName());
          countryCodeTextView.setText(country.getDialCode());
          selectedCountry = country;
      }
docs: Sets the current Country to the one given.
  
  @param country the country to set.