Object-oriented programming Courses and Certifications

Career Certificate

Programming in C# for Beginners

298 ratings at CodeSignal

Learn C# fundamentals through control flow, collections, functions, and object-oriented programming.

• CodeSignal
• 10 hours
• Self-Paced
• Free Certificate
• 6 courses

The Modern Python 3 Bootcamp

31153 ratings at Udemy

A Unique Interactive Python Experience With Nearly 200 Exercises and Quizzes

• Udemy
• 1 day 6 hours
• Self-Paced
• Paid Course

The Complete Java Certification Course

30455 ratings at Udemy

Become a confident industry ready core Java developer and get certified as a Java professional!

• Udemy
• 18 hours 3 minutes
• Self-Paced
• Paid Course

Career Certificate

Introduction to TypeScript for Beginners

257 ratings at CodeSignal

Build beginner TypeScript skills through foundations, data structures, loops, functions, and object-oriented programming.

• CodeSignal
• 8 hours
• Self-Paced
• Free Certificate
• 5 courses

Java In-Depth: Become a Complete Java Engineer! [2026]

25486 ratings at Udemy

Java Programming Bootcamp with Spring Boot, Best Practices, Design Rules & Spring Boot Project — Updated for Java 25

• Udemy
• 3 days 12 hours 35 minutes
• Self-Paced
• Paid Course

Computer Science: Programming with a Purpose

1386 ratings at Coursera

Learn to program in Java from scratch: variables, conditionals, loops, arrays, I/O, functions, recursion, performance analysis, and creating your own abstract data types.

• Coursera
• 10 weeks, 9 hours a week
• Self-Paced
• Free Online Course

The Complete Python Course | Learn Python by Doing in 2026

23058 ratings at Udemy

Go from Beginner to Expert in Python by building projects. The best investment for your Python journey!

• Udemy
• 1 day 11 hours 17 minutes
• Self-Paced
• Paid Course

Goldsmiths University of London;  University of London

Introduction to Object-Oriented Programming in C++

191 ratings at Coursera

Write, compile and run your first C++ programs: use standard-library text I/O, simple functions and while loops to build an interactive crypto-exchange menu.

• Coursera
• 2 weeks, 4 hours a week
• Self-Paced
• Paid Course

Building Web Applications in Django

787 ratings at Coursera

Build Django web applications: define models with the ORM, write views and generic views, design one-to-many and many-to-many SQL relationships, and handle HTML forms securely.

• Coursera
• 6 weeks, 2 hours a week
• Self-Paced
• Paid Course

Core Java Made Easy (Covers the latest Java 21)

19961 ratings at Udemy

Master Java from datatypes and OOP to multithreading, collections, JVM internals and features through Java 21, with file I/O, lambdas, reflection and coding problems.

• Udemy
• 1 day 4 hours 42 minutes
• Self-Paced
• Paid Course

Learn the basics of the popular Java language in this introductory course. ☕️

• Codecademy
• 17 hours
• Self-Paced
• Free Trial Available

Career Certificate

Accelerated Computer Science Fundamentals

3508 ratings at Coursera

Implement arrays, hash tables, linked lists, trees, heaps and graphs in C++, analyze asymptotic run times, and write traversal, rebalancing and shortest-path algorithms.

• Coursera
• 8 weeks, 10 hours a week
• Self-Paced
• Paid Course
• 3 courses

Confreaks

Building an Enigma Machine Emulator with Ruby - Test-Driven Development and Object-Oriented Programming

Recreate the Enigma machine in Ruby to see how object-oriented principles and design patterns model its cipher.

• YouTube
• 1 hour 27 minutes
• Self-Paced
• Free Video

Bro Code

Understanding the Super Keyword in Java - Object-Oriented Programming

See how Java’s `super` keyword calls parent constructors to initialize inherited fields in student and employee subclasses.

• YouTube
• 11 minutes
• Self-Paced
• Free Video

Meeting Cpp

There Is No Silver Bullet - Object-Oriented vs Functional Programming in Modern C++

An architectural comparison of object-oriented type erasure and functional std::variant argues for combining paradigms according to the problem.

• YouTube
• 58 minutes
• Self-Paced
• Free Video