Question

I want to know what the HelperClass used for. Can someone please explain it with examples?

Thank You

Answer 1

A helper class (in Java, at least) is usually just a static utility class with a variety of methods. In general, a single helper class deals with related functionality, like Apache Commons’ StringUtils class, that has a bunch if static methods that operate on strings.

In Java, these types of classes often exist to wrap up functionality that either cannot (for example, the String class is final, so additional functionality can’t be added) or should not be addedto the class itself.

In a nutshell, however, a helper class is a class that helps, by providing general or specific functionality in a generic, reusable, encapsulated way.