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: Brute-force attacks, Cryptography, Encryption, Python Programming, Scripting, User Interface (UI), Statistical Programming, UI Components, Application Development
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Web Development Tools, HTML and CSS, Web Development, Javascript, Web Applications, Web Design and Development, Cascading Style Sheets (CSS), Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Infographics, Content Creation, Graphic and Visual Design Software, Social Media, Graphic Design, Graphical Tools, Data Sharing, Content Marketing, User Accounts, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Reconciliation, QuickBooks (Accounting Software), Spreadsheet Software, Accounting Records, Investigation, Variance Analysis, Financial Statements, Accounts Payable, Financial Controls, Financial Auditing, Fraud detection, Analysis, Verification And Validation, Payment Processing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Debugging, Software Testing, Software Development Methodologies, Continuous Integration, Data Mapping, File Management
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Performance Testing, Maintainability, Software Testing, Code Review, Software Technical Review, Security Testing, Test Planning, Software Quality Assurance, Test Tools, White-Box Testing, Regression Testing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Istio, Microservices, Containerization, Docker (Software), Kubernetes, Application Deployment, Software Architecture, Cloud-Native Computing, Systems Architecture, Service Oriented Architecture, Application Performance Management, Performance Tuning, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Python Programming, Image Analysis, Real Time Data, Classification Algorithms, Development Environment, Deep Learning, Software Installation, Algorithms
Beginner · Course · 3 - 6 Months

Alex Genadinik
Skills you'll gain: Prompt Engineering, Debugging, Claude Code, Responsible AI, Verification And Validation, ChatGPT, Artificial Intelligence, Development Testing, Software Testing
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Sales Strategy, Sales Process, Anthropic Claude, Sales, Sales Development, Sales Pipelines, Sales Management, Data-Driven Decision-Making, Inside Sales, AI Personalization, Customer Analysis, Customer Insights, Customer experience improvement, Market Analysis, Trend Analysis, Forecasting, Analysis, Market Trend
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: UI Components, HTML and CSS, Extensible Markup Language (XML), Cascading Style Sheets (CSS), Verification And Validation, Interactive Design, User Interface (UI), Web Design and Development, Web Content Accessibility Guidelines, Web Development, Web Design, Interaction Design, Data Validation, Debugging, Development Testing, Maintainability
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Applications, Javascript, Other Programming Languages, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Programming Principles
Intermediate · Course · 1 - 4 Weeks