# Object Oriented Programming - The Key Terms

DevFeed: [Object Oriented Programming - The Key Terms](<https://devfeed.tech/articles/object-oriented-programming-the-key-terms-34688.md>)

Original publisher: [Read original article](<https://newsletter.systemdesigncodex.com/p/object-oriented-programming-the-key>)

Author: Saurabh Dashora

Published: 2026-03-24T08:38:43Z

Content type: article

Language: en

Sources: [System Design Codex](<https://devfeed.tech/sources/system-design-codex.md>)

Topics: [Object-oriented programming (OOP)](<https://devfeed.tech/topics/oop.md>), [Programming](<https://devfeed.tech/topics/programming.md>), [Polymorphism](<https://devfeed.tech/topics/polymorphism.md>), [Inheritance](<https://devfeed.tech/topics/inheritance.md>), [implementation](<https://devfeed.tech/topics/implementation.md>), [interface](<https://devfeed.tech/topics/interface.md>)

Tags: [abstraction](<https://devfeed.tech/tags/abstraction.md>), [concepts](<https://devfeed.tech/tags/concepts.md>), [inheritance](<https://devfeed.tech/tags/inheritance.md>), [maintainability](<https://devfeed.tech/tags/maintainability.md>), [object-oriented](<https://devfeed.tech/tags/object-oriented.md>), [polymorphism](<https://devfeed.tech/tags/polymorphism.md>), [programming](<https://devfeed.tech/tags/programming.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

This tutorial introduces object-oriented programming through four principles: abstraction, encapsulation, inheritance, and polymorphism. It explains how abstraction hides implementation details, encapsulation controls access to data and methods, and inheritance supports reuse and hierarchical relationships. The supplied text begins its discussion of polymorphism but is truncated.

## Source excerpt

The essential concepts