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.
University of Illinois Urbana-Champaign
Skills you'll gain: Agile Methodology, Organizational Change, Revenue Recognition, Agile Project Management, Organizational Structure, Organizational Leadership, Accrual Accounting, Financial Statements, Project Planning, Organizational Strategy, Accruals, Business Ethics, Change Management, Sprint Planning, Waterfall Methodology, Cash Flows, Financial Statement Analysis, Cost Management, Financial Accounting, Project Management
Build toward a degree
Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: JUnit, Test Automation, Unit Testing, Java Programming, Java, Test Script Development, Verification And Validation, Test Tools, Software Testing, Test Execution Engine, Development Testing, Quality Assurance, Software Quality Assurance, System Testing, Application Development, Test Case, Data Validation, Application Design, Automation, Software Development
Beginner · Specialization · 1 - 3 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Computer Architecture, Systems Design, Microarchitecture, System Design and Implementation, Technical Design, Application Specific Integrated Circuits, Digital Design, Design Software, Hardware Architecture, Computer Hardware, Simulations
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Program Development, Data Validation, Object Oriented Programming (OOP), Build Tools, Programming Principles, Object Oriented Design, Algorithms, Software Testing, Enterprise Modeling, Unit Testing, Data Structures, Data Modeling
Intermediate · Course · 1 - 3 Months

Meta
Skills you'll gain: React Native, iOS Development, Core Data (Software), Restful API, User Research, Version Control, GitHub, UI/UX Research, Usability Testing, Apple iOS, Jest (JavaScript Testing Framework), Git (Version Control System), Data Structures, Swift Programming, User Interface (UI), Apple Xcode, Unix Commands, Persona (User Experience), Mobile Development, Javascript
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Data Visualization, Prompt Engineering Tools, Prompt Patterns, AI powered creativity, AI literacy, AI Personalization, Generative AI, Timelines, LLM Application, Agentic Workflows, Spreadsheet Software, Ideation, Artificial Intelligence, Business Correspondence, Complex Problem Solving, Report Writing, Solution Design, Document Management, Critical Thinking, Machine Learning
Beginner · Specialization · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Teamwork, Business Writing, Constructive Feedback, Conflict Management, Diversity and Inclusion, Collaboration, Team Building, Diversity Awareness, Business Correspondence, Business Communication, Team Collaboration, Recognizing Others, Motivational Skills, Decision Making, Collaborative Software, Writing, Team Motivation, Performance Management, Staff Management, Grammar
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Google Ads, Search Engine Optimization, Digital Marketing, Keyword Research, Digital Advertising, Target Audience, Search Engine Marketing, Online Advertising, Persona Development, Customer Analysis, Conversion Funnel Analysis, Content Optimization, Marketing Strategy and Techniques, Advertising Campaigns, Marketing Strategies, Customer Engagement
Beginner · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Jest (JavaScript Testing Framework), React.js, Web Development Tools, UI Components, Unit Testing, Mobile Development Tools, Code Reusability, JavaScript Frameworks, Frontend Integration, Webpack, Front-End Web Development, Application Development, Software Design Patterns, Javascript, Web Applications, Dataflow, Data Access, Hypertext Markup Language (HTML), Data Sharing, User Interface (UI)
Intermediate · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Database Design, Database Development, Relational Databases, Data Modeling, Database Software, Database Management Systems, Database Management, Oracle Databases, SQL, Query Languages, Data Integrity, Diagram Design, PostgreSQL
Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Tensorflow, Computer Vision, Model Evaluation, Image Analysis, Convolutional Neural Networks, Keras (Neural Network Library), Deep Learning, Artificial Neural Networks, Model Training, Applied Machine Learning, Artificial Intelligence, Data Preprocessing, Machine Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: PyTorch (Machine Learning Library), Model Optimization, Keras (Neural Network Library), Deep Learning, Convolutional Neural Networks, Reinforcement Learning, Transfer Learning, Autoencoders, Generative AI, Unsupervised Learning, Tensorflow, Artificial Neural Networks, Recurrent Neural Networks (RNNs), Generative Adversarial Networks (GANs), Generative Model Architectures, Model Training, Logistic Regression, Image Analysis, Applied Machine Learning, Regression Analysis
Intermediate · Professional Certificate · 3 - 6 Months