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.

Skills you'll gain: Data Storytelling, Healthcare Project Management, Data Visualization, Concision, Analytical Skills
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Time Management, Oral Comprehension, Quick Learning, Active Listening, Literacy, Language Competency, Public Speaking, Learning Strategies, Verbal Communication Skills, Grammar, Concision, Composure, Analytical Skills, Planning, Detail Oriented, Vocabulary, English Language, Adaptability
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Generative AI Agents, Agentic systems, OpenAI API, AI Workflows, Tool Calling, OAuth, AI Orchestration, Middleware, Interoperability, API Gateway, Agentic Workflows, Software Development Tools, LLM Application, Prompt Engineering, AI Security, Application Programming Interface (API), Authentications, Real Time Data, Software Architecture, Systems Integration
Intermediate · Professional Certificate · 3 - 6 Months

Alex Genadinik
Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Blogs, Competitive Analysis, Quality Assessment, Relationship Building, Content Strategy, Content Creation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Performance Testing, Salesforce Development, Salesforce, Performance Tuning, Performance Analysis, Application Performance Management, Software Testing, UI Components, Query Languages, Continuous Integration, DevOps, Debugging
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Software Quality Assurance, Quality Assurance, Software Testing, Jira (Software), Regression Testing, Functional Testing, Test Planning, Test Case, Usability Testing, Technical Communication, Issue Tracking, Agile Methodology, Software Documentation, Software Development, Agile Project Management, Risk Management, User Interface and User Experience (UI/UX) Design, Data Analysis, Problem Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Front-End Web Development, User Interface (UI) Design, Event-Driven Programming, Hypertext Markup Language (HTML)
Beginner · Course · 1 - 4 Weeks

Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Servers, File Management, Routing Protocols
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: User Story, Quality Assurance, Jira (Software), Agile Methodology, Verification And Validation, Product Quality (QA/QC), Quality Assessment, Agile Project Management, Sprint Planning, Workflow Management, Project Estimation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Technical Analysis, Financial Trading, Financial Market, Portfolio Risk, Derivatives, Market Analysis, Statistical Analysis, Market Dynamics, Market Data, Risk Analysis, Data Validation, Trend Analysis, Performance Analysis, Probability Distribution, Behavioral Economics, Model Evaluation, Consolidation, Risk Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: C++ (Programming Language), Software Documentation, System Programming, Technical Documentation, Application Development, Maintainability, Data Structures, Generative AI, Application Performance Management, Algorithms, Scalability
Beginner · Course · 1 - 3 Months