### Question:
NumericFeature implements Feature { @Override public int hashCode() { return Double.hashCode(value); } private  NumericFeature(double value); static NumericFeature forValue(double value); double getValue(); @Override FeatureType getFeatureType(); @Override String toString(); @Override int hashCode(); @Override boolean equals(Object o);  }### Answer:
@Test public void testHashCode() { assertEquals(NumericFeature.forValue(1.5), NumericFeature.forValue(1.5)); assertEquals(NumericFeature.forValue(Double.MIN_VALUE), NumericFeature.forValue(Double.MIN_VALUE)); }