### Question:
KmlPoint extends Point { public Double getAltitude() { return mAltitude; } KmlPoint(LatLng coordinates);  KmlPoint(LatLng coordinates, Double altitude); Double getAltitude();  }### Answer:
@Test public void testPointAltitude() { KmlPoint kmlPoint = createSimplePoint(); assertNotNull(kmlPoint); assertNull(kmlPoint.getAltitude()); kmlPoint = createSimplePointWithAltitudes(); assertNotNull(kmlPoint); assertNotNull(kmlPoint.getAltitude()); assertEquals(100.0, kmlPoint.getAltitude(), 0); }