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.

Scrimba
Skills you'll gain: Prompt Engineering, Responsive Web Design, Node.JS, Command-Line Interface, TypeScript, Unit Testing, SQL, HTML and CSS, Web Content Accessibility Guidelines, Typography, Cascading Style Sheets (CSS), Ajax, React.js, User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), JavaScript Frameworks, JSON, Generative AI, Database Design, UI Components
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, Generative Model Architectures, Generative Adversarial Networks (GANs), Autoencoders, Model Deployment, Deep Learning, PyTorch (Machine Learning Library), Model Evaluation, Embeddings, Artificial Neural Networks, Convolutional Neural Networks, Transfer Learning, Performance Tuning, Artificial Intelligence, Scalability, Python Programming, Machine Learning, Image Quality, Performance Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Front-End Web Development, Bootstrap (Front-End Framework), Web Design and Development, jQuery, Web Design, Web Applications, User Interface (UI), Animations, Javascript, Event-Driven Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: Server Side, Application Development, Data Modeling
Beginner · Course · 1 - 4 Weeks

The University of Hong Kong
Skills you'll gain: Instructional Design, Curriculum Development, Lesson Planning, Pedagogy, Teaching, Course Development, Instructional Strategies, Student Engagement, Higher Education, Learning Theory
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Analysis Expressions (DAX), Azure Synapse Analytics, Microsoft Azure, Real Time Data, Query Languages, Power BI, Data Warehousing, Dataflow, SQL, Apache Spark, Data Pipelines, Data Governance, Business Analytics, Data Management, Data Science, Workflow Management, Security Engineering, Artificial Intelligence and Machine Learning (AI/ML), Warehouse Management, Application Deployment
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Excel Macros, Visual Basic (Programming Language), Programming Principles, Data Import/Export, Microsoft Excel, Problem Solving, Computer Programming, Spreadsheet Software, Simulations, Code Review, Algorithms, UI Components, Debugging, Data Management, User Interface (UI), File I/O, Data Cleansing, Automation, Data Validation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: LangGraph, AI Workflows, AI Orchestration, Agentic Workflows, LangChain, LLM Application, Agentic systems, Test Execution Engine, Responsible AI, Human Factors (Security), Data Persistence, Debugging, Network Routing, Software Architecture, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: ASP.NET, JavaScript Frameworks, Development Environment, Application Programming Interface (API), Microsoft Development Tools, Web Development, Microsoft Visual Studio, Maintainability, Software Design, UI Components, Data Validation, Version Control
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Microsoft Excel, Regression Analysis, Data Validation, Excel Formulas, Data Management, Data Visualization, Spreadsheet Software, Statistical Modeling, Data Cleansing, Financial Analysis, Predictive Modeling, Data Analysis Expressions (DAX), Financial Modeling, Analysis, Data Integrity, Mathematical Modeling, Productivity Software, Complex Problem Solving, Financial Forecasting, Problem Solving
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Databases, Data Integrity
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Stakeholder Communications, Workflow Management, Technical Communication, Stakeholder Management, Jira (Software), Internal Communications, IT Management, Project Management, Data Storytelling, Communication Strategies, Information Architecture, Data Visualization, Business Process Automation, Automation, Key Performance Indicators (KPIs), Continuous Monitoring
Intermediate · Course · 1 - 4 Weeks