What are the differences between Helper and Utility classes?

Question

How determine how call a class XHelper or XUtils ?

To my mind :

Helper class, is a class that can be instantiate and do some business work

Answer 1

As Jesper said, it's entirely arbitrary. You can think of what works for your organization and make that the convention.

For me, it's something like this:

utils - Static class, that can be freely moved and imported anywhere.

Doing general tasks that could be useful in different modules. As Peter Lawrey said, more specific names are useful.

helper - Class helping another class or a module.

Tasks that are only used in the module it's placed and won't make sense to be imported elsewhere. Hence the name could be more specific - ModuleNameHelper (e.g. AdministrationHelper, LoginHelper)