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: API Testing, JSON, Test Automation, Test Script Development, Application Programming Interface (API), Restful API, Software Testing, Test Tools, Integration Testing, Functional Testing
★ 4.6 (309) · Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Systems Development Life Cycle, Software Quality Assurance, Software Development Life Cycle, Quality Assurance, Software Quality (SQA/SQC), Software Documentation, Functional Testing, Software Testing, Software Development Methodologies, Acceptance Testing, User Acceptance Testing (UAT), Test Case, Maintainability, Test Planning, Unit Testing, Software Design, Technical Documentation, Agile Methodology
★ 4 (34) · Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), JSON, HTML and CSS, Web Content Accessibility Guidelines, Javascript, Application Programming Interface (API), Web Design, Semantic Web, Usability, Web Applications, Web Development, Test Tools, Web Content, Front-End Web Development, Data Structures, Application Frameworks, Network Protocols, Data Ethics, Animations
★ 4.8 (13) · Beginner · Specialization · 1 - 3 Months

SkillUp
Skills you'll gain: SAP S/4HANA, Data Modeling, SAP Applications, Systems Architecture, Enterprise Resource Planning, Functional Requirement, Software Development Tools, Data Migration, Software Development Methodologies, Application Deployment, Organizational Structure, Compliance Reporting
★ 4.4 (70) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Extensible Markup Language (XML)
★ 4.7 (12) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Animation and Game Design, Performance Tuning, User Interface (UI), 3D Assets, Event-Driven Programming, Virtual Environment, Project Design, Interactive Design, C# (Programming Language), User Interface (UI) Design, Program Development, Debugging, Scripting, Animations, UI Components, Code Reusability, Computer Graphics
★ 5 (19) · Beginner · Specialization · 3 - 6 Months

Knowledge Accelerators
Skills you'll gain: Cyber Security Policies, AI Security, Cybersecurity, Threat Management, Cyber Attacks, Cyber Risk, Email Security, Endpoint Security, Mobile Security, Identity and Access Management, Remote Access Systems, Multi-Factor Authentication, Artificial Intelligence
★ 4.9 (55) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Network Architecture, Emerging Technologies, Internet Of Things, Network Security, Network Protocols, Wireless Networks, Network Performance Management, Network Planning And Design, Network Engineering, Communication Systems, Mobile Security, Network Infrastructure, Cybersecurity, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Vulnerability Assessments, Distributed Computing, Technology Strategies, Digital Signal Processing
★ 4.6 (65) · Intermediate · Specialization · 1 - 3 Months
Skills you'll gain: Peer Review, Blockchain, Plan Execution, Market Opportunities, Business Analysis, Strategic Thinking, Case Studies, Market Analysis, Solution Design, New Business Development, Business Modeling, Value Propositions, Proposal Development, Decision Making, Market Research, Target Audience
★ 4.6 (214) · Intermediate · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Design Thinking, Ideation, Innovation, Market Opportunities, Creativity, Entrepreneurship, Commercialization, Resource Planning, Market Research, Customer Insights
★ 4.6 (326) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: HVAC, Building Services Engineering, Thermal Management, Mechanical Engineering, Engineering, System Requirements, Engineering Calculations, Energy and Utilities, Engineering Analysis, Estimation, Environmental Issue
★ 4.3 (60) · Intermediate · Course · 1 - 4 Weeks

The University of Sydney
Skills you'll gain: Creative Thinking, Creativity, Creative Problem-Solving, Innovation, Ideation, Cognitive flexibility, Design Thinking, Open Mindset, Strategic Thinking, Problem Solving
★ 4.8 (85) · Beginner · Course · 1 - 4 Weeks