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.

Packt
Skills you'll gain: Application Deployment, Object-Relational Mapping, Model View Controller, Database Management, UI Components, PostgreSQL, Databases, Full-Stack Web Development, Web Development, Web Applications, Authentications, Development Environment, Authorization (Computing), Application Frameworks, Cascading Style Sheets (CSS), File Management
Intermediate · Course · 3 - 6 Months

Skills you'll gain: PL/SQL, Oracle Databases, SQL, Stored Procedure, Data Access, Database Design, Programming Principles, Debugging, Relational Databases, Maintainability
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Issue Tracking, Timelines, Design, Graphic Design, File Management, Collaborative Software, Data Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: CrewAI, AI Orchestration, AI Workflows, Agentic Workflows, AI Enablement, Workflow Management, AI Product Strategy, Generative AI Agents, Productivity Software, Business Workflow Analysis, Business Process Automation, Automation, LLM Application, Agentic systems, Solution Design, Decision Making, Process Improvement, Performance Improvement
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Visualization Software, Scientific Visualization, Interactive Data Visualization, Geospatial Information and Technology, Data Presentation, Color Theory, Graphic and Visual Design, Data Visualization, Tree Maps, Visualization (Computer Graphics), Data Storytelling, Design Elements And Principles, Plot (Graphics), Data Literacy, Heat Maps, Computer Displays, Exploratory Data Analysis, Time Series Analysis and Forecasting, Data Mapping, Display Devices
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Distributed Computing, Scalability, Database Design, Database Management Systems, Database Systems, Database Architecture and Administration, Database Management, Relational Databases, SQL, Performance Tuning, Data Integrity, Transaction Processing
Intermediate · Course · 1 - 4 Weeks

Fred Hutchinson Cancer Center
Skills you'll gain: Bioinformatics, Molecular Biology, Data Collection, Data Processing, Research, Laboratory Techniques, Analysis, Research Design
Intermediate · Course · 1 - 3 Months

Codio
Skills you'll gain: Go (Programming Language), Object Oriented Programming (OOP), Web Services, Web Frameworks, Debugging, Python Programming, Restful API, Dependency Analysis, Performance Tuning, Software Engineering
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MySQL Workbench, Database Design, Database Development, Database Systems, Relational Databases, Database Management, SQL, Data Manipulation, Data Analysis, Data Science
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: TypeScript, Computational Logic, Scripting Languages, Programming Principles, Web Development Tools, Data Structures, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

The State University of New York
Skills you'll gain: digital literacy, Information Management, Literacy, Lifelong Learning, Critical Thinking, Investigation, Intellectual Property, Planning, Communication, Content Management, Reliability, Constructive Feedback, Data Access, Style Guides
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Search Engine Optimization, E-Commerce, Logistics Management, Product Marketing, Product Demonstration, Product Knowledge, Customer Service, Customer Relationship Management, Online Advertising, Price Negotiation, Web Analytics and SEO, Social Media Marketing
Beginner · Course · 1 - 4 Weeks