What are the difference between helper and utils classes?
<p>How determine how call a class XHelper or XUtils ?</p>

<p>To my mind  :</p>

<p><strong>Helper class</strong>, is a class that can be instantiate and do some business work</p>

<p><strong>Utils class</strong>, is a static class that perform small and repetitive operations on a kind of instance (example of utils classes ArrayUtils or IOUtils from Apache)</p>
