### Question:
SpaceAge { double onNeptune() { throw new UnsupportedOperationException("Delete this statement and write your own implementation."); } SpaceAge(double seconds);   }### Answer:
@Ignore("Remove to run test") @Test public void ageOnNeptune() { SpaceAge age = new SpaceAge(1821023456L); assertEquals(0.35, age.onNeptune(), MAXIMUM_DELTA); }