public static <T extends Comparable<? super T>> T min(T[] numberArray) {
		return min(numberArray, null);
	}
@Test
	public void minTest() {
		int min = ArrayUtil.min(1, 2, 13, 4, 5);
		assertEquals(1, min);

		long minLong = ArrayUtil.min(1L, 2L, 13L, 4L, 5L);
		assertEquals(1, minLong);

		double minDouble = ArrayUtil.min(1D, 2.4D, 13.0D, 4.55D, 5D);
		assertEquals(1.0, minDouble, 0);
	}