A programming paradigm based on the concept of objects, which can contain data, in the form of fields, and code, in the form of procedures.

"Object-oriented programming languages include Java, C++, Python, and Ruby."

A programming paradigm based on the concept of 'objects', which can contain data, in the form of fields, and code, in the form of procedures, often known as methods.

"OOP languages such as Java, C++, and Python allow developers to create modular, reusable code that models real-world entities."