Method checkIfNotEmpty

src/main/java/com/thealgorithms/maths/Means.java:138–142

Validates that the input iterable is not empty. @param numbers the input numbers to validate @throws IllegalArgumentException if the input is empty

(final Iterable<Double> numbers)

     * @throws IllegalArgumentException if the input is empty
     */
    private static void checkIfNotEmpty(final Iterable<Double> numbers) {
        if (!numbers.iterator().hasNext()) {
            throw new IllegalArgumentException("Empty list given for Mean computation.");
        }
    }
}