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.

SkillsBooster Academy
Skills you'll gain: Email Marketing, Lead Generation, Email Automation, Customer Relationship Management (CRM) Software, Performance Metric, Sales Pipelines, Digital Marketing, Copywriting, Customer Support, Customer Engagement, Data Pipelines, Compliance Management, Revenue Cycle Management, Generative AI, Design and Product, Product Design, Law, Regulation, and Compliance, Artificial Intelligence, Design Elements And Principles, Statistics
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Marketing Automation, AI Personalization, Marketing Analytics, Digital Marketing, Marketing Strategies, Marketing, Customer Analysis, Digital Advertising, Predictive Analytics, Image Analysis, Artificial Intelligence, Customer Engagement, ChatGPT, Search Engine Optimization, Automation, Visual Merchandising, Computer Vision
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Inside Sales, Sales Process, Generative AI Agents, Sales Strategy, Email Automation, AI Personalization, Sales Management, HubSpot CRM, Sales Enablement, Sales, Sales Training, Sales Prospecting, ChatGPT, Anthropic Claude, Customer Relationship Management (CRM) Software, Customer Communications Management, Customer Engagement, Campaign Management, Automation, Analytics
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, iOS Development, User Interface (UI) Design, Android Development, Application Development, JavaScript Frameworks, Data Storage Technologies, Development Environment, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Presentations, Team Oriented, Team Management, Collaborative Software, Virtual Teams, Project Design, Data Sharing, Social Media, Graphic Design, User Accounts, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Universitat Politècnica de València
Skills you'll gain: Prompt Engineering, ChatGPT, Microsoft Copilot, Email Automation, Deepseek, Productivity Software, Education Software and Technology, Artificial Intelligence, Generative AI, Excel Macros, Productivity, Excel Formulas
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Server Side, Restful API, API Design, Database Management, Back-End Web Development, Databases, Database Systems, Node.JS, Application Programming Interface (API), Full-Stack Web Development, Authentications, Web Applications, JavaScript Frameworks, Web Development, Web Servers, Authorization (Computing), NoSQL, MongoDB, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Containerization, Restful API, Event-Driven Programming, DevOps, Data Integration, z/OS, Solution Architecture, Cloud Applications, Microservices, Enterprise Architecture, IBM Cloud, Application Lifecycle Management, Cloud-Native Computing, Application Design, CI/CD, Systems Integration, Software Architecture, Mainframe Computing
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, Relational Databases, Database Management, Database Systems, Performance Tuning, Databases, Database Administration, Query Languages
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Animation and Game Design, Animations, Video Game Development, User Interface (UI) Design, Computer Graphic Techniques, Visualization (Computer Graphics), Game Design, Python Programming, Computer Graphics, Image Analysis, Program Development, Peripheral Devices, Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Marketing Automation, AI Personalization, Marketing Effectiveness, Marketing, Content Marketing, Marketing Strategies, MarTech, Advertising Campaigns, Agentic Workflows, AI Enablement, Marketing Analytics, Customer Relationship Management, Data-Driven Decision-Making, Social Media Management, Customer experience improvement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Google Sheets, Scripting, Google App Engine, Project Design, Productivity Software, Automation, Data Access, HTML and CSS, Business Process Modeling, Workflow Management, Javascript, Supplier Relationship Management
Beginner · Guided Project · Less Than 2 Hours