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: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Interactive Design, Color Theory, User Interface (UI), Web Development
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Quality Assurance, Software Quality Assurance, Test Planning, Test Case, Continuous Integration, DevOps, Software Testing, Regression Testing, Test Execution Engine, Software Engineering Tools, Agile Methodology, Issue Tracking, Risk Management Framework, Automation
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Ruby on Rails, Model View Controller, Ruby (Programming Language), Object-Relational Mapping, Test Automation, Restful API, Application Deployment, Web Applications, Web Development, Authentications, Development Environment, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, OpenAI API, Context Management, User Interface (UI), Vector Databases, Debugging
Advanced · Course · 1 - 3 Months

EC-Council
Skills you'll gain: Network Security, Cybersecurity, Information Assurance, Cloud Security, Security Controls, Mobile Security, Data Security, Cryptography, Public Key Infrastructure, Authorization (Computing), Intrusion Detection and Prevention, Network Monitoring, Wireless Networks, Authentications, Identity and Access Management, Encryption, Threat Detection, Internet Of Things
Beginner · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Advertising, Instagram, Marketing Materials, Content Creation, Social Media Content, Facebook, Social Media Marketing, Design, Graphic Design
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Unreal Engine, 3D Modeling, 3D Assets, Computer Graphics, Visualization (Computer Graphics), Virtual Environment, Animation and Game Design, Animations, Computer Graphic Techniques, Virtual Reality, Data Import/Export, File Management
Intermediate · Specialization · 3 - 6 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Growth Mindedness, Communication, Positivity, Personal Development, Optimism, Self-Awareness, Collaboration, Resilience, Emotional Intelligence, Adaptability, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: PySpark, Customer Analysis, Big Data, Data Processing, Advanced Analytics, Statistical Modeling, Text Mining, Customer Insights, Risk Modeling, Data Transformation, Unstructured Data, Simulation and Simulation Software, Data Manipulation, Image Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Apache Maven, Java Platform Enterprise Edition (J2EE), Hibernate (Java), Unit Testing, Docker (Software), Software Design Patterns, Object-Relational Mapping
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Salesforce Development, Salesforce, Systems Integration, Data Integration, Web Services, Integration Testing, Application Programming Interface (API), Software Design Patterns, Restful API, Complex Problem Solving, Business Solutions
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, React Redux, Cloud Deployment, Application Deployment, Cloud Applications, Software Testing, Web Development, Application Development, Jest (JavaScript Testing Framework), Frontend Integration, JavaScript Frameworks, Software Architecture, Javascript and jQuery, Front-End Web Development, Real Time Data, Application Programming Interface (API), Responsive Web Design, Event-Driven Programming, Cascading Style Sheets (CSS), UI Components
Beginner · Specialization · 3 - 6 Months