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: Miro AI, Customer Engagement, Responsible AI, AI Product Strategy, No-Code Development, Customer experience improvement, Email Automation, Customer Service, Customer Analysis, Automation, Generative AI, Customer Data Management, Customer Communications Management, Customer Relationship Management (CRM) Software, Customer Support, Workflow Management, Artificial Intelligence, Customer and Client Support, Agentic systems, Ethical Standards And Conduct
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AWS SageMaker, Amazon Web Services, Internet Of Things, Artificial Intelligence and Machine Learning (AI/ML), Blockchain, Image Analysis, Remote Access Systems, Text Mining, Computer Vision, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Debugging, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing, Payment Systems
Advanced · Course · 1 - 3 Months

Skills you'll gain: File I/O, Cryptography, User Accounts
Intermediate · Course · 3 - 6 Months

EDUCBA
Skills you'll gain: Event-Driven Programming, User Interface (UI), Software Design, UI Components, User Interface (UI) Design, Application Design, Development Environment, Cross Platform Development, Application Development, Data Entry
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: JUnit, Unit Testing, Software Testing, Development Testing, Java, Test Case, Integration Testing, Test Automation, Test Driven Development (TDD)
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Site Reliability Engineering, Service Level, DevOps, Continuous Delivery, Safety Culture, Data-Driven Decision-Making, Culture Transformation, Continuous Integration, Performance Measurement, Cross-Functional Collaboration, Organizational Change, Incident Management, Collaboration, Automation, Change Management, Communication
Beginner · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Data Structures, Data Processing, Verification And Validation, Python Programming, Data Preprocessing, Programming Principles, Scripting, Scripting Languages, Computer Programming, Software Development
Mixed · Course · 1 - 4 Weeks

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Data Literacy, Technical Communication, Probability & Statistics, Web Scraping, Data Import/Export, JSON, Data Integration, Statistical Analysis, Pandas (Python Package), Image Analysis, Advanced Analytics, Analytical Skills, Analysis, Data-Driven Decision-Making, Case Studies, Data Manipulation, AI Enablement, Descriptive Statistics, Statistical Inference, Unsupervised Learning
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Simulations, Education Software and Technology, Computer Programming Tools, Computational Thinking, No-Code Development, Program Development, Computer Programming, UI Components, Pedagogy
Advanced · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Performance Testing, Maintainability, Software Testing, Code Review, Software Technical Review, Security Testing, Test Planning, Software Quality Assurance, Test Tools, White-Box Testing, Regression Testing
Advanced · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Mental Concentration, Professional Development, Productivity, Self-Discipline, Personal Development, Time Management, Organizational Skills, Learning Strategies, Stress Management, Cleanliness
Mixed · Course · 1 - 4 Weeks