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.

Coursera
Skills you'll gain: Promotional Materials, Marketing Materials, LinkedIn, Content Creation, Social Media Content, Social Media, Graphic Design, Data Visualization, Content Marketing, Digital Content, Digital Marketing
★ 4.7 (7) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: UI Components, Responsive Web Design, Code Reusability, Web Development Tools, Application Deployment, Database Management, Web Applications, Data Store, Web Components, Frontend Integration, Authentications, Application Development, JavaScript Frameworks, Email Automation, Restful API, Web Design, Front-End Web Development, TypeScript, Application Programming Interface (API), Payment Systems
★ 5 (6) · Intermediate · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Security Management, Identity and Access Management, Application Security, Security Strategy, Secure Coding, Security Testing, Cyber Security Assessment, Security Engineering, IT Security Architecture, Security Controls, Risk Management Framework, Cybersecurity, Authentications, Software Development, Network Security, Risk Management, Infrastructure Security, Data Security, Cyber Operations, Continuous Monitoring
★ 4.2 (9) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Preprocessing, Keras (Neural Network Library), Model Evaluation, Model Training, Image Analysis, Data Processing, Scientific Visualization, Data Transformation, Applied Machine Learning, Computer Vision, Jupyter, Deep Learning, Python Programming, Machine Learning
★ 4.1 (11) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: SketchUp (3D Modeling Software), 3D Modeling, Visualization (Computer Graphics), 3D Assets, Conceptual Design, AutoCAD, Design Thinking, Animations, Computer Graphic Techniques, Layout Design, Software Visualization, Editing, Model Evaluation, Software Installation, Design Software, Model Optimization, Spatial Analysis, User Interface (UI)
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Amazon Web Services, Amazon S3, Amazon Elastic Compute Cloud, Amazon Redshift, Cloud Hosting, Amazon DynamoDB, Cloud Services, Cloud Engineering, Cloud Infrastructure, Cloud Storage, Database Administration, Cloud Deployment, Cloud Computing Architecture, Databases, Network Planning And Design, Virtual Networking, Servers, Database Management, Network Infrastructure, Cloud Security
★ 4.4 (17) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Security, Google Cloud Platform, Cloud Solutions, Cloud Computing Architecture, Network Planning And Design, Technical Design, System Implementation, System Configuration, Cloud Computing, Solution Architecture, Data Storage, Cloud Storage
★ 4.8 (6) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Android (Operating System), User Interface (UI) Design, Code Reusability, UI Components, Release Management, Development Environment, Programming Principles
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Application Programming Interface (API), API Gateway, GraphQL, API Design, Restful API, OAuth, Software Documentation, Authentications, Debugging, Real Time Data, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Geospatial Information and Technology, Geospatial Mapping, Spatial Data Analysis, Applied Machine Learning, Geographic Information Systems, GIS Software, Spatial Analysis, Environmental Monitoring, Machine Learning Methods, Unsupervised Learning, Data Analysis Software, Image Analysis, Machine Learning, R Programming, Data Processing, Data Preprocessing, Classification Algorithms, Data Transformation, Dimensionality Reduction, Data Import/Export
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Web Components, Cascading Style Sheets (CSS), HTML and CSS, Angular, Hypertext Markup Language (HTML), Responsive Web Design, Frontend Performance, Front-End Web Development, Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, Web Design, Web Design and Development, React.js, UI Components, Frontend Integration, Web Analytics and SEO, JavaScript Frameworks, Web Development, Semantic Web, Web Applications
Beginner · Specialization · 1 - 3 Months

Skillshare
Skills you'll gain: Logo Design, Animations, Adobe After Effects, Motion Graphics, Graphic Design, Design Elements And Principles
Mixed · Course · 1 - 4 Weeks