What is object-oriented programming?

Answer 1

Oop is a paradigm that helps build and understand software. It allows to 'hide' some logic with access specifier (private, public, protected) and in some cases, it just make a lot of sense (inheritance).

Answer 2

Objects are supposedly more intuitive when modelling real world entities.

Answer 3

Let's have an example!
Imagine you are building a lib to display a GUI. You'll probably create a class named 'widget' that people will be able to use (inherit from).