Object Oriented Programming courses can help you learn core concepts like classes, objects, inheritance, and polymorphism. You can build skills in designing robust software architectures, implementing design patterns, and writing reusable code. Many courses introduce tools such as Java, Python, and C++, which are commonly used in software development, enabling you to apply your knowledge in practical coding projects. Additionally, you may explore frameworks that enhance object-oriented principles, further enriching your programming toolkit.

Board Infinity
Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Core Data (Software), Apple Xcode, Mobile Development, User Interface (UI), User Interface (UI) Design, UI Components, Integrated Development Environments, Debugging, Data Persistence, Data Management, Programming Principles, Application Programming Interface (API), Data Storage, Authentications
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Selenium (Software), Test Driven Development (TDD), Performance Stress Testing, API Testing, Unit Testing, Performance Testing, Application Programming Interface (API), User Interface (UI), Javascript
★ 4.2 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PyTorch (Machine Learning Library), Natural Language Processing, Generative Adversarial Networks (GANs), Vision Transformer (ViT), Deep Learning, Generative Model Architectures, Graph Theory, Dimensionality Reduction, Network Model, Unsupervised Learning, Model Optimization, Embeddings, Artificial Neural Networks, Machine Learning Methods, Supervised Learning, Model Evaluation, Model Training, Model Deployment, Flask (Web Framework)
★ 4.5 (32) · Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Front-End Web Development, Javascript, Responsive Web Design, Maintainability
★ 4.7 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud API, Google Cloud Platform, Text Mining, Application Programming Interface (API), LLM Application, Large Language Modeling, Generative AI, Prompt Engineering, Natural Language Processing, Jupyter, Python Programming, Classification Algorithms
★ 4.1 (7) · Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Ajax, JSON, Javascript, Application Programming Interface (API), Web Applications, Secure Coding, Application Security
★ 4.8 (8) · Intermediate · Course · 1 - 4 Weeks

University of Leeds
Skills you'll gain: Exploratory Data Analysis, Data Cleansing, Statistical Methods, Statistical Visualization, Plot (Graphics), Statistical Modeling, Data Visualization, Statistics, R (Software), Data Analysis, Statistical Software, Probability & Statistics, Data Literacy, Statistical Inference, R Programming, Descriptive Statistics, Box Plots, Data Visualization Software, Histogram, Probability
★ 4.5 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Algorithms, Programming Principles, Computational Thinking
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: MongoDB, Data Access, Query Languages, Database Systems, Database Software, Data Collection, Database Management, NoSQL, Database Management Systems, Databases, Scripting, Scripting Languages, Python Programming, Development Environment, Back-End Web Development, Software Installation, Package and Software Management
★ 4.4 (17) · Intermediate · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: Claude Code, Software Architecture, Anthropic Claude, Systems Architecture, Software Development Tools, Continuous Integration, Software Design Patterns, Code Coverage, Code Review, AI Workflows, Agentic Workflows, Software Technical Review, Command-Line Interface, Prompt Engineering, Context Management, Prompt Patterns, YAML, Rust (Programming Language), Software Installation, Unix Commands
Intermediate · Course · 1 - 3 Months

Skills you'll gain: GitHub Copilot, Unit Testing, Test Script Development, Flask (Web Framework), Front-End Web Development, Web Applications, Web Development, Microsoft Visual Studio, Python Programming, Development Environment, User Interface (UI), Generative AI, Software Installation
★ 4.7 (18) · Intermediate · Guided Project · Less Than 2 Hours

SkillUp
Skills you'll gain: Relational Databases, MySQL, Data Management, Database Design, Data Warehousing, Data Visualization, Data Visualization Software, Interactive Data Visualization, Data Security, Dashboard Creation, Dashboard, Database Management, Data Presentation, Tableau Software, Data Cleansing, SQL, Microsoft Excel, Data Governance, Data Manipulation, Data Preprocessing
★ 5 (9) · Advanced · Course · 1 - 3 Months