What are the advantages of classes?

Classes support a powerful programming model by encapsulating related functionality into objects . The benefit of organized code is especially important for maintenance, where changes or enhancements can be limited to the objects that are affected by the change. Classes enhance code reuse.

Here are 13 big advantages to taking online classes.

The class is a blueprint that defines a nature of a future object. An instance is a specific object created from a particular class. Classes are used to create and manage new objects and support inheritance —a key ingredient in object-oriented programming and a mechanism of reusing code.

No, you should not put everything into classes . Whoever told you that was wrong. C++ is not (just) an OO language, it is a multi-paradigm language. Additionally, putting everything into classes does not mean that code is object oriented (especially since for static methods you don’t need actual objects, just types).