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.

Board Infinity
Skills you'll gain: Sprint Planning, Sprint Retrospectives, Agile Methodology, Backlogs, Agile Project Management, Estimation, Capacity Planning, Project Estimation, Meeting Facilitation, User Story, Dependency Analysis, Goal Setting, Capacity Management, Cross-Functional Team Leadership, Prioritization, Collaboration, Stakeholder Management, Team Building, Risk Mitigation
Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: JSON, Restful API, Ajax, Javascript, Web Development Tools, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, Go (Programming Language), Restful API, Authentications, Application Programming Interface (API), Secure Coding, API Design, Application Security, Software Testing, Microservices, Authorization (Computing), Database Development, Web Servers, Server Side, Databases, Software Architecture, JSON, Role-Based Access Control (RBAC), Maintainability, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Functional Design, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Figma (Design Software), Prototyping, Collaborative Software, Mockups, Design, Graphic Design, UI Components, User Interface (UI) Design, Typography, User Accounts, Application Design, Instructional Design, Image Quality, Systems Design
Beginner · Guided Project · Less Than 2 Hours
University of Glasgow
Skills you'll gain: Model Evaluation, Data Ethics, AI Security, Responsible AI, Healthcare Ethics, Machine Learning, Deep Learning, Information Privacy, Decision Support Systems, Health Informatics, Predictive Modeling, Artificial Intelligence, Human Centered Design, Data Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Restful API, Authentications, Test Automation, Test Script Development, Test Case, Java, JSON
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Podcasting, Adobe Express, Media Production, Content Creation, Digital Publishing, Creative Design, Storytelling, Branding, Graphic and Visual Design, Editing
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Database Management Systems, Database Design, Database Architecture and Administration, Database Application, Relational Databases, SQL, Data Modeling, Query Languages, Data Integrity, Data Manipulation, Data Security
Build toward a degree
Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: Amazon S3, AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Amazon Web Services, Identity and Access Management, Cloud Deployment, Cloud Computing, Cloud Computing Architecture, Cloud Infrastructure, Command-Line Interface, Public Cloud, Cloud Storage, Multi-Factor Authentication, Data Storage, Scalability
Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Tensorflow, Convolutional Neural Networks, Transfer Learning, Image Analysis, Computer Vision, Classification Algorithms, Data Preprocessing, Model Evaluation, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica de Chile
Skills you'll gain: Health Systems, Public Health, Infectious Diseases, Nutrition and Diet, Environmental Science, Epidemiology, Food Safety and Sanitation, Environment, Sustainable Development, Biology, Research and Design, Microbiology
Beginner · Course · 1 - 4 Weeks