### Question:
GeoJsonPoint extends Point { public Double getAltitude() { return mAltitude; } GeoJsonPoint(LatLng coordinates);  GeoJsonPoint(LatLng coordinates, Double altitude); String getType(); LatLng getCoordinates(); Double getAltitude();  }### Answer:
@Test public void testGetAltitude() { GeoJsonPoint p = new GeoJsonPoint(new LatLng(0, 0), 100d); assertEquals(new Double(100), p.getAltitude()); }