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.

The World Bank Group
Skills you'll gain: Climate Change Adaptation, Climate Change Mitigation, Resilience, Sustainable Development, Environmental Issue, Environmental Policy, Scientific Methods, Cooperation, Environmental Science, Collaboration, Water Resource Management, Energy and Utilities
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Continuous Monitoring, Incident Response, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Computer Security Incident Management, Cyber Security Policies, Cyber Security Assessment, Information Assurance, Network Security, Risk Management Framework, Cloud Security, Authentications
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java, Application Servers, Web Applications, Development Environment, Java Programming, Application Development, Program Development, Object Oriented Programming (OOP), Mobile Development, Computer Programming, UI Components, Event-Driven Programming, User Interface (UI), Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Project Planning, Conflict Management, Stakeholder Management, Planning, Project Management, Project Scoping, Work Breakdown Structure, Stakeholder Analysis, Project Coordination, Leadership and Management, Influencing, Organizational Structure
Mixed · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Database Systems, Relational Databases, Database Management, Database Theory, Databases, SQL, Database Design, Database Management Systems, Database Architecture and Administration, Data Access, Query Languages, Data Modeling, Data Manipulation, User Accounts
Build toward a degree
Beginner · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Image Analysis, Matlab, Computer Vision, Traffic Flow Optimization, Automation, Anomaly Detection, Data Preprocessing, Data Store
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Postman API Platform, API Design, Application Programming Interface (API), API Testing, Authentications, Object-Relational Mapping, Development Environment, Microsoft Development Tools, Microsoft Visual Studio, Web Development Tools, Authorization (Computing), Endpoint Security, Data Validation
Intermediate · Course · 1 - 3 Months

Amazon
Skills you'll gain: Full-Stack Web Development, Restful API, Cloud Deployment, Front-End Web Development, HTML and CSS, Data Persistence, Application Programming Interface (API), Server Side, Java Platform Enterprise Edition (J2EE), Web Applications, Secure Coding, Amazon Elastic Compute Cloud, Back-End Web Development, Spring Boot, Model View Controller, Responsive Web Design, Javascript
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Requirements Elicitation, Software Design Documents, Requirements Analysis, Security Requirements Analysis, Mockups, Interviewing Skills, User Requirements Documents, Data Flow Diagrams (DFDs), Storyboarding, Requirements Management, Functional Requirement, Goal Setting, Software Development Methodologies, Software Documentation, Diagram Design, Agile Methodology, Business Requirements, Unified Modeling Language, Risk Management Framework, System Requirements
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Canva (Software), Graphic Design, User Accounts, Design Software, Shared Media, Presentations, Organizational Skills, Account Management, Content Creation, Marketing
Beginner · Guided Project · Less Than 2 Hours

University of Copenhagen
Skills you'll gain: Gerontology, Competitive Analysis, Design Thinking, Demography, Innovation, Rehabilitation, Intellectual Property, Health Technology, Chronic Diseases, Health Systems, Health Care, Value Propositions, Health Policy, Business Modeling, User Research, Project Management, Nutrition and Diet
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Concision, Grant Writing, Sample Size Determination, Grant Applications, Proposal Writing, Biostatistics, Writing, Clinical Research Ethics, Editing, Statistical Analysis, Healthcare Ethics, Persuasive Communication, Data Analysis, Clinical Research, Statistical Methods, Medical Science and Research, Research Design, Planning, Science and Research, Growth Mindedness
Intermediate · Specialization · 3 - 6 Months