After procedural and structured programming came object oriented programming ... This is a private variable belonging to this class, meaning that we can't // access it from our 'main' class ...

Porting procedural ... new to object-oriented design. However, once you’ve completed the move, you can take advantage of one of the best features of object-oriented programming—code reuse.

See object-oriented DBMS. OOP Traditional Programming class define data + processing object data + processing attribute data (a field) method function message function call instantiate allocate a ...