Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

National Taiwan University
Skills you'll gain: Statistical Visualization, Matplotlib, Web Scraping, Business Logic, Machine Learning, Business Analytics, Python Programming, Programming Principles, Business Economics, User Interface (UI) Design, Computational Thinking, Object Oriented Programming (OOP), Data Analysis
★ 4.9 (163) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Adobe After Effects, Motion Graphics, Animations, Graphic and Visual Design, Storyboarding, Adobe Photoshop, Photo/Video Production and Technology, Video Editing, 3D Assets, Layout Design, Timelines, Color Matching
★ 4.7 (13) · Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Event Monitoring, Incident Response, Security Management, Cyber Security Policies, Command-Line Interface, System Monitoring, Configuration Management, Object Oriented Design, User Interface (UI), Computer Displays, Simulations
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Team Building, Collaborative Software, Canva (Software), Team Management, Design, User Accounts, Design Software, Content Creation, Marketing
★ 4.8 (228) · Intermediate · Guided Project · Less Than 2 Hours

Edureka
Skills you'll gain: Database Design, Data-Driven Decision-Making, Dashboard, Business Intelligence, Spreadsheet Software, Data Management
★ 4.8 (16) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, MLOps (Machine Learning Operations), Cloud Deployment, Unit Testing, Docker (Software), Containerization, Kubernetes, AI Workflows, IBM Cloud, Microservices, Machine Learning, Responsible AI, Business Metrics, Natural Language Processing, Time Series Analysis and Forecasting, Data Science, Python Programming
★ 4.5 (60) · Advanced · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Convolutional Neural Networks, Artificial Neural Networks, Deep Learning, Machine Learning Algorithms, Image Analysis, Machine Learning, Computer Vision, Model Evaluation, Supervised Learning, Algorithms, Statistical Methods, Linear Algebra, Probability
★ 4.2 (10) · Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Model Context Protocol, OpenAI API, Retrieval-Augmented Generation, AI Workflows, AI Orchestration, OpenAI, LLM Application, Generative AI Agents, Embeddings, Cloud Deployment, Artificial Intelligence and Machine Learning (AI/ML), Application Deployment, Tool Calling, ChatGPT, Artificial Intelligence, Vector Databases, Agentic systems, Prompt Engineering, Application Programming Interface (API), Responsible AI
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Key Performance Indicators (KPIs), Bookkeeping, Financial Forecasting, Revenue Forecasting, Budget Management, Financial Statement Analysis, Business Reporting, Dashboard, Capital Budgeting, Financial Controls, Financial Reporting, Financial Analysis, Process Improvement, Financial Services, Financial Data, Investments, Predictive Analytics, Data-Driven Decision-Making
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Browser Compatibility, Hypertext Markup Language (HTML), Web Development Tools, Web Design, Web Development
★ 4.7 (63) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Social Media Campaigns, Advertising Campaigns, Social Media, Storytelling, Marketing Materials, Advertising, Social Media Marketing, Content Creation, Marketing Design, Graphic Design, User Accounts
★ 4.5 (44) · Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Anthropic Claude, OpenAI API, Prompt Engineering, LLM Application, Generative AI, Large Language Modeling, Multimodal Prompts, Artificial Intelligence, Responsible AI, Cloud Deployment, Restful API, API Design
★ 4.4 (27) · Intermediate · Course · 1 - 4 Weeks