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.

Johns Hopkins University
Skills you'll gain: Community Health, Community Development, Public Health, Social Determinants Of Health, Health Promotion, Public Health and Disease Prevention, Health Disparities, Health Policy, Community and Social Work, Health Systems, Political Sciences, Program Evaluation, Cultural Diversity, Case Studies
Mixed · Course · 1 - 3 Months

University of New Mexico
Skills you'll gain: Middleware, Application Frameworks, Web Applications, Model View Controller, Agile Software Development, Git (Version Control System), Software Engineering, Web Development, Software Development, User Interface (UI), Databases, Relational Databases, Ajax, Software Architecture, Ruby on Rails, Javascript, Network Protocols
Mixed · Course · 1 - 3 Months

Skills you'll gain: JUnit, Restful API, Software Design, JSON, Software Testing
Intermediate · Course · 3 - 6 Months

SkillUp
Skills you'll gain: SAP S/4HANA, Data Modeling, Enterprise Resource Planning, Functional Requirement, Software Development Tools, Cloud Deployment, Organizational Structure, Real Time Data, Compliance Reporting, User Interface (UI) Design
Beginner · Course · 1 - 4 Weeks

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 Infrastructure, Communication Systems, General Networking, Mobile Security, Telecommunications, Cybersecurity, Technology Roadmaps, Artificial Intelligence and Machine Learning (AI/ML), Automation, Cloud Computing, Real Time Data
Intermediate · Specialization · 1 - 3 Months

Saïd Business School, University of Oxford
Skills you'll gain: FinTech, Financial Inclusion, Financial Services, Responsible AI, Data Ethics, Artificial Intelligence, Mobile Banking, Banking Services, Data Sharing, Financial Systems, Data Governance, Application Programming Interface (API), Financial Data, Financial Regulation, Finance, Artificial Intelligence and Machine Learning (AI/ML), Business Ethics, Innovation, General Data Protection Regulation (GDPR), Natural Language Processing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Browser Compatibility, Java Programming, Software Testing, Javascript, Eclipse (Software), Apache Maven, Development Environment, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Software Installation, System Configuration
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Spring Framework, Hibernate (Java), Spring Boot, Java, Object-Relational Mapping, Database Management, Apache Maven, Software Design Patterns, SQL, Data Persistence, Functional Design, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Relational Databases, Database Management, Database Development, SQL, MySQL, Database Design, Transaction Processing, Stored Procedure, Java, Data Structures, Data Integrity, Performance Tuning
Build toward a degree
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Embedded Systems, Electronic Systems, Cybersecurity, Automation, Electronics, Sustainable Technologies, Control Systems, Internet Of Things, Software Development, Real-Time Operating Systems, Systems Integration, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Responsible AI, Autoencoders, Convolutional Neural Networks, Recurrent Neural Networks (RNNs), Data Ethics, Deep Learning, Artificial Neural Networks, Reinforcement Learning, Generative AI, Generative Adversarial Networks (GANs), Machine Learning Algorithms, Model Deployment, Debugging, Artificial Intelligence, Image Analysis, Unsupervised Learning, Machine Learning Methods, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Computer Vision
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Infographics, Canva (Software), Graphic and Visual Design, Design Elements And Principles
Intermediate · Guided Project · Less Than 2 Hours