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.

Northeastern University
Skills you'll gain: Software Quality Assurance, Test Automation, Usability Testing, Quality Assurance, Software Testing, Usability, Test Tools, Software Development Life Cycle, Selenium (Software), Acceptance Testing, Test Script Development, Back-End Web Development, API Testing, Test Case, User Experience Design, Human Computer Interaction, Functional Testing, Cloud Computing, Database Management Systems, Leadership
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Test Script Development, API Testing
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Google Analytics, Web Analytics and SEO, Search Engine Optimization, Web Analytics, Content Performance Analysis, Keyword Research, Prioritization, Data Import/Export, Workflow Management, Content Strategy, Data Integration, User Research, Performance Metric
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Generative AI, Generative Model Architectures, LLM Application, Prompt Engineering, ChatGPT, AI Enablement, AI Security, Cloud Development, Data Ethics, Real Time Data, Model Deployment, Cloud Computing Architecture, Artificial Intelligence, MLOps (Machine Learning Operations), Deep Learning, Scalability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Expense Management, Travel Arrangements, Auditing, Accounts Payable, Accounting, Cost Control, Compliance Auditing, Compliance Management, Fraud detection, Decision Making, Document Management, Record Keeping, Verification And Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Search Engine Optimization, Case Studies, Process Improvement and Optimization, Web Analytics and SEO, Competitive Analysis, Keyword Research, Content Strategy, Business Strategy, Marketing Strategies, Analysis, Auditing
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: User Interface (UI), Web Content Accessibility Guidelines, Development Environment, Web Analytics and SEO
Beginner · Course · 3 - 6 Months

Skills you'll gain: React Native, Application Development, Data Validation, Mobile Development, Data Persistence, Application Design, User Interface (UI), Web Applications, Software Design, Authentications, User Interface (UI) Design, Application Programming Interface (API), Verification And Validation, Data Storage Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Logistic Regression, SAS (Software), Predictive Modeling, Regression Analysis, Predictive Analytics, Feature Engineering, Analytics, Statistical Methods, Data Transformation, Statistical Modeling, Statistical Analysis, Business Analytics, Estimation, Probability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: WordPress, Virtual Networking, Data Persistence
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Brand Strategy, Business Risk Management, Risk Management, Emotional Intelligence, Leadership Development, Lifelong Learning, Creative Thinking, Leadership, Decisiveness, Innovation, Growth Mindedness, Business Transformation, Adaptability, Self-Awareness, Storytelling, Empathy & Emotional Intelligence, Executive Presence, Change Management, Decision Making
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Salesforce Development, Salesforce, CI/CD, Software Architecture, Solution Architecture, Continuous Deployment, Systems Architecture, Continuous Integration, Code Review, Relational Databases, Integration Testing, Software Technical Review, Software Design, Software Design Patterns, Database Design, Maintainability, Enterprise Architecture, Diagram Design, System Design and Implementation, Scalability
Beginner · Course · 1 - 3 Months