### Question:
ArrayInitializer { static long[] initializeArrayUsingArraysFill() { long array[] = new long[5]; Arrays.fill(array, 30); return array; }    }### Answer:
@Test public void whenInitializeArrayUsingArraysFill_thenCorrect() { assertArrayEquals(new long[] { 30, 30, 30, 30, 30 }, initializeArrayUsingArraysFill()); }