MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Point buenosAiresObeliscoPoint =
            new Point((float) -34.6037389, (float) -58.3815704);

    Point nycStatueOfLibertyPoint =
            new Point((float) 40.6892494, (float) -74.0445004);

    float distanceBetweenPoints = LatLonDistanceCalculator.calculateDistance(
            buenosAiresObeliscoPoint,
            nycStatueOfLibertyPoint);

    TextView kilometersLabel = (TextView) findViewById(R.id.kilometers_label);

    kilometersLabel.setText("Between the Obelisco and the Statue of Liberty there are: \n" + distanceBetweenPoints + "KM");
}