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: Secure Coding, Application Security, Security Testing, Software Development Methodologies, Configuration Management, Software Development, Software Configuration Management, Systems Development Life Cycle, Software Development Life Cycle, Package and Software Management, Software Testing, Security Engineering, API Testing, Application Programming Interface (API), Cloud Security, Process Driven Development, Risk Management Framework
★ 4.8 (42) · Intermediate · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Design Thinking, Ethical Standards And Conduct, Initiative and Leadership, Community Organizing, Leadership, Sustainable Systems, Leadership Development, Environmental Issue, Personal Development, Visionary, Innovation, Decision Making, Empowerment, Collaboration, Goal Setting
★ 5 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Office, Communication, Business Communication, Graphic Design
★ 4.6 (43) · Intermediate · Guided Project · Less Than 2 Hours

University of Science and Technology of China
Skills you'll gain: Brainstorming, Creative Thinking, Creative Problem-Solving, Ideation, Problem Solving, Innovation, Adult Education, Productivity, Workflow Management, Social Sciences, Productivity Software, Collaboration, Quick Learning, Operational Efficiency, Learning Strategies, Lifelong Learning, Willingness To Learn, World History, Personal Development, Sociology
★ 4.3 (130) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Data Warehousing, Data Architecture, Data Infrastructure, Data Storage, Database Administration, Extract, Transform, Load, Database Architecture and Administration, Data Integration, Cloud Storage, Data Mart, Data Storage Technologies, Database Design, Operational Data Store, Database Systems, Query Languages, Data Persistence, Metadata Management
★ 3.8 (69) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Microservices, DevOps
★ 4.2 (54) · Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Design Thinking, Business Modeling, Entrepreneurship, Value Propositions, New Product Development, Market Opportunities, Ideation, Gap Analysis, Innovation, Technology Strategies, Strategic Thinking, New Business Development, Engineering Management, Technology Solutions, Market Analysis, Business Strategies, Business Strategy, Competitive Analysis, Sustainable Business, Engineering
★ 4.2 (46) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Earned Value Management, Milestones (Project Management), Project Management Life Cycle, Project Schedules, Timelines, Communication Planning, Capacity Planning, Project Management Software, Project Estimation, Project Management, Workflow Management, Meeting Facilitation, Project Documentation, Stakeholder Communications, Dashboard, Backlogs, Project Planning, Jira (Software), Interviewing Skills, Collaboration
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Internet Of Things, Automation, IT Automation, Data Management, Systems Architecture, Hardware Architecture, Security Controls, Network Protocols, Information Management, Systems Integration, Interoperability, Information Systems Security, Emerging Technologies, Communication Systems, Systems Design
★ 4.5 (42) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Logo Design, Canva (Software), Video Production, Photo/Video Production and Technology, Graphic and Visual Design Software, Graphical Tools, Graphic Design, Graphic and Visual Design, Content Creation, Design, Creative Design, Social Media Marketing
★ 4.8 (20) · Beginner · Guided Project · Less Than 2 Hours
University of Michigan
Skills you'll gain: SQL, Relational Databases, Datamaps, Database Management, Query Languages, Databases, Database Design, Database Systems, Data Visualization, Object Oriented Programming (OOP), Data Processing, Data Modeling, Data Manipulation, Geospatial Mapping, Data Storage, Python Programming
★ 4.7 (6) · Mixed · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Business Leadership, Strategic Leadership, AI Product Strategy, Responsible AI, Business Strategy, Decision Intelligence, Generative Adversarial Networks (GANs), Strategic Decision-Making, Organizational Effectiveness, Risking, Deep Learning, Artificial Intelligence, Organizational Development, AI Integrations, Data Ethics, Process Design, Human Centered Design, Data Quality, Design Thinking, Data Pipelines
★ 4.7 (23) · Intermediate · Course · 1 - 3 Months