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: Canva (Software), Social Media, Social Media Content, Social Media Campaigns, Content Creation, Animations, Social Media Marketing, Visual Storytelling, Social Media Strategy, Campaign Planning, Driving engagement, Graphic and Visual Design, Instagram, Cross-Channel Marketing, Content Optimization, Branding, Brand Management
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, User Interface (UI), HTML and CSS, Front-End Web Development, Web Development Tools, Web Design and Development, User Interface and User Experience (UI/UX) Design, Bootstrap (Front-End Framework), React.js, Web Development, Web Design, Javascript, Cascading Style Sheets (CSS), UI Components, JavaScript Frameworks, Hypertext Markup Language (HTML), Semantic Web
★ 3.7 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Planning And Design, Microsoft Azure, Network Troubleshooting, Network Security, Network Architecture, Network Monitoring, Load Balancing, Virtual Networking, Network Engineering, Network Performance Management, Network Support, Network Administration, Network Infrastructure, Cloud Engineering, IT Security Architecture, Scalability, Computer Networking, Firewall, Virtual Private Networks (VPN), Security Engineering
★ 4.7 (131) · Beginner · Specialization · 3 - 6 Months

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Team Collaboration, Collaboration, Performance Analysis, Sports Medicine, Nutrition and Diet, Athletic Training, Exercise Science, Injury Prevention, Coaching, Nutrition Education, Innovation, Automation, AI Personalization, Leadership, Teamwork, Performance Reporting, Technology Solutions, Data Management, Health Technology, Communication
Beginner · Specialization · 3 - 6 Months

Fudan University
Skills you'll gain: Unity Engine, Cross Platform Development, Performance Tuning, Android Development, Game Design, Mobile Development, Video Game Development, Computer Graphics, Android (Operating System), Animation and Game Design, Computer Graphic Techniques, Image Quality, Virtual Environment, Artificial Intelligence, Animations, Scripting
★ 4.7 (36) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Splunk, Data Modeling, Role-Based Access Control (RBAC), System Monitoring, Model Training, Incident Response, User Accounts, Machine Learning Methods, Security Information and Event Management (SIEM), Machine Learning Software, User Provisioning, Model Evaluation, Authorization (Computing), Event Monitoring, Systems Administration, Performance Tuning, Data Visualization, Threat Detection, Identity and Access Management, Security Management
★ 4.8 (51) · Advanced · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Smart Goals, Goal Setting, Interviewing Skills, Professional Networking, Artificial Intelligence and Machine Learning (AI/ML), Negotiation, Professional Development, Data Science, Artificial Intelligence, Machine Learning, Compensation and Benefits, Job Evaluation, Data Analysis, Web Presence, Recruitment, Data Literacy, Events and Conferences, Data Architecture, AI literacy, Relationship Building
★ 4.7 (30) · Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Design, Marketing Collateral, Graphic Design, Marketing Materials, Content Creation, Digital Content, Organizational Skills, Marketing, Collaborative Software, Data Sharing, Design and Product, Branding, Google Workspace, User Accounts, Advertising
★ 3.9 (11) · Intermediate · Guided Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, Unstructured Data, LLM Application, Large Language Modeling, Data Preprocessing, Metadata Management, Data Processing, JSON, Image Analysis, Data Transformation, Document Management, Vision Transformer (ViT)
★ 4.4 (16) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Energy and Utilities, Electrical Power, Electrical Systems, Electric Power Systems, Sustainable Technologies, Thermal Management, Chemical Engineering, Power Electronics, Climate Change Mitigation, Electrical Equipment, Mechanical Engineering, Sustainable Engineering, Materials science, Real Time Data, Environmental Engineering, Chemistry, Environmental Issue, Engineering Calculations
★ 4.5 (19) · Beginner · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Vibe coding, AI Workflows, Generative AI Agents, Software Development Tools, Application Development, GitHub, Code Review, AI Personalization, Software Development, Generative AI, Artificial Intelligence, Web Development Tools, Web Development, Software Engineering, Responsible AI, Design Software, Front-End Web Development, Javascript, React.js
★ 4.4 (50) · Beginner · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Prompt Engineering Tools, Prompt Patterns, Vibe coding, Data Ethics, AI Workflows, Generative AI Agents, AI Integrations, AI Personalization, Artificial Intelligence, Debugging, Ideation, Problem Solving, Automation, Code Review, Ethical Standards And Conduct, Computer Programming Tools, Productivity
★ 2.4 (8) · Beginner · Course · 1 - 3 Months