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: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Applications, Javascript, Web Design, Web Development, Front-End Web Development, Animation and Game Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, UI Components, Mockups, Typography, Web Development
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Market Research, Data-Driven Decision-Making, Consumer Behaviour, Customer Analysis, Marketing Psychology, Market Analysis, Marketing Planning, Behavioral Economics, Customer Insights, Strategic Marketing, Marketing Strategies, Technology Strategies, Product Lifecycle Management, Business-To-Consumer, B2B Sales, Digital Marketing
Build toward a degree
Beginner · Course · 1 - 3 Months

American Council on Exercise
Skills you'll gain: Exercise Science, Nutrition and Diet, Safety Training, Kinesiology, Health Education, Injury Prevention, Anatomy, Physiology, Coaching, Goal Setting
Beginner · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Infrastructure Security, Vulnerability Scanning, Network Security, Amazon Web Services, Firewall, Virtual Networking, Virtual Private Networks (VPN), Security Controls, Cloud Security, AWS Identity and Access Management (IAM), Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), Programming Principles, Data Management, Algorithms, Computer Programming, File I/O
Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Creativity, Ideation, Teamwork, Creative Thinking, Presentations, Team Building, Communication, Brainstorming, Innovation, Persuasive Communication, Influencing, Collaboration, Professional Development, Creative Problem-Solving, Open Mindset, Decision Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Generative Adversarial Networks (GANs), Exploratory Data Analysis, Model Deployment, Keras (Neural Network Library), NumPy, Applied Machine Learning, Transfer Learning, PyTorch (Machine Learning Library), Predictive Modeling, Matplotlib, Data Analysis, Data Preprocessing, Development Environment, Pandas (Python Package), Deep Learning, Artificial Neural Networks, Image Analysis, Artificial Intelligence, Machine Learning, Data Science
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Full-Stack Web Development, UI Components, User Interface (UI), MySQL, User Interface (UI) Design, Object Oriented Programming (OOP), Event-Driven Programming, Database Design, Application Deployment, Application Design, Python Programming, Application Development, Database Management, Graphical Tools, Database Application, Databases, Software Design, Computer Graphics, Development Environment, SQL
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, Apache Maven, API Testing, Test Script Development, Restful API, Test Automation, JSON, Scalability, Test Case, Test Data, Authentications, Java
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Recurrent Neural Networks (RNNs), Convolutional Neural Networks, Transfer Learning, Model Evaluation, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Semantic Web, Usability, Javascript, Responsive Web Design, Web Content
Mixed · Course · 1 - 4 Weeks