Utility和Helper类之间的区别

Question

Aren't utility classes really the same concept as helpers? I mean utility methods don't extend an existing class such as helpers but the two types of methods really could be referred to as "Helpers" in either case.

Answer 1

Utility classes are useful by itself; whereas helper classes are classes with extension methods which will help extend the types.

Answer 2

Utility classes tend to be static methods and definitions, where as helper classes could be nodes in a linked list. That is how I use the terminology.