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.

University at Buffalo
Skills you'll gain: Building Codes, Construction Inspection, Electrical Systems, Electrical Power, Electric Power Systems, Electrical Safety, Architectural Engineering, Land Development, Design Reviews, Submittals (Construction), Process Analysis, Safety Standards, Document Management, System Requirements
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Javascript, Software Design Patterns, Data Management, Data Structures, Web Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

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

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Management, Database Development, Relational Databases, Database Design, Query Languages
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Mammography, Model Evaluation, Model Training, Artificial Intelligence, Bayesian Network, Image Analysis, AI Product Strategy, Machine Learning Methods, Oncology, Artificial Neural Networks, Medical Imaging, Machine Learning, Applied Machine Learning, Deep Learning, Epidemiology
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Power Electronics, Control Systems, Electronic Systems, Electrical Power, Electric Power Systems, Electrical Engineering, Electronics, Energy and Utilities, Simulation and Simulation Software, Simulations, Mathematical Modeling
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Security Requirements Analysis, Network Architecture, Network Security, Internet Of Things, Cybersecurity, Web Services, Advanced Encryption Standard (AES), Encryption, Embedded Systems, Network Protocols, Public Key Cryptography Standards (PKCS), Communication Systems, Threat Modeling, Security Controls, Simple Object Access Protocol (SOAP), TCP/IP, Web Applications, Restful API, Information Privacy
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Tree Maps, Theoretical Computer Science, Analysis, Python Programming
Build toward a degree
Advanced · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Restful API, SQL, React Native, Database Management, Databases, Application Programming Interface (API), API Design, Relational Databases, Data Persistence, Mobile Development, Data Storage Technologies, Data Management, Application Development, Authentications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: GitHub, Responsive Web Design, React.js, Front-End Web Development, Git (Version Control System), HTML and CSS, Version Control, Hypertext Markup Language (HTML), Web Development, Web Design and Development, Back-End Web Development, Frontend Integration, Web Design, UI Components, Code Review, Web Applications, Cascading Style Sheets (CSS), Web Analytics and SEO, Database Development, Software Development
Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Community Organizing, Compassion, Community Development, Community Outreach, Social Impact, Needs Assessment, Train The Trainer, Program Evaluation, Empathy, Education and Training, Data Mapping, Initiative and Leadership, Empowerment, Curriculum Planning, Working With Children, Collaboration, Planning, Driving engagement, Environmental Issue
Beginner · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction Inspection, Construction, Engineering Plans And Specifications, Building Design, Structural Engineering, Structural Analysis, Architecture and Construction, Industrial Design, Shop Drawing, Construction Engineering, Engineering Drawings, Technical Drawing, Engineering Design Process, Engineering Calculations
Intermediate · Course · 1 - 4 Weeks