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: Networking Hardware, OSI Models, Network Architecture, Network Protocols, General Networking, Network Security, TCP/IP, Computer Networking, Cloud Technologies, Network Infrastructure, Network Administration, Local Area Networks, Cloud Platforms, Network Planning And Design, Routing Protocols, Cloud Infrastructure, Virtual Private Networks (VPN), Cloud Services, Telecommunications, Wireless Networks
★ 4.4 (13) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unit Testing, Test Case, Application Deployment, Responsive Web Design, Continuous Deployment, Maintainability, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, Software Testing, Test Script Development, HTML and CSS, Development Testing, Hypertext Markup Language (HTML), Interviewing Skills, Web Development Tools, Debugging, Web Development, Application Development, Software Documentation
★ 4.4 (23) · Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Computer Vision, Model Evaluation, Supervised Learning, Image Analysis, Data Preprocessing, Applied Machine Learning, Machine Learning Methods, Feature Engineering, Machine Learning Algorithms, Data Processing, Model Training, Model Optimization, Machine Learning, Data Cleansing, Scikit Learn (Machine Learning Library), Machine Learning Software, Data Integration, Data Transformation, Classification Algorithms, Regression Analysis
★ 3.7 (12) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Retail Management, Retail Store Operations, Retail Sales, Merchandising, Customer Analysis, Market Intelligence, Business Strategies, Competitive Analysis, Business Management, Organizational Strategy, Consumer Behaviour, Inventory Management System, Market Analysis, Case Studies, Market Share, Strategic Decision-Making, Sustainable Business, Intellectual Property, Financial Analysis, Geographic Information Systems
★ 5 (46) · Beginner · Specialization · 1 - 3 Months
Amazon Web Services
Skills you'll gain: Prompt Engineering, Amazon Bedrock, AI Workflows, Agentic Workflows, Generative AI Agents, Generative AI, Amazon Web Services, Solution Architecture, AI Integrations, Artificial Intelligence, Data Quality, Model Optimization, Computer Vision, Fine-tuning, Scalability, Data Pipelines, Natural Language Processing
★ 4.6 (24) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Webpack, Frontend Performance, Search Engine Optimization, Web Development Tools, Web Analytics and SEO, Performance Tuning, Build Tools, Debugging, Usability Testing, Web Development, Software Testing, Test Tools, Front-End Web Development, Functional Testing, Test Automation, Continuous Monitoring, Development Testing, Computer Programming Tools, JavaScript Frameworks, WordPress
★ 4.5 (38) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Animations, Canva (Software), Social Media, Storytelling, Visual Storytelling, Social Media Content, Content Creation, Social Media Marketing, Graphical Tools, Digital Design, Graphic and Visual Design Software, Design, Graphic Design, Marketing
★ 4.5 (47) · Beginner · Guided Project · Less Than 2 Hours

EDUCBA
★ 4.8 (24) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, OpenAI API, Prompt Patterns, AI Workflows, Generative Model Architectures, Fine-tuning, Model Deployment, Token Optimization, AI Integrations, Applied Machine Learning, Hugging Face, Artificial Intelligence and Machine Learning (AI/ML), Application Deployment, Memory Management, Object Oriented Programming (OOP), Context Management, API Testing, Document Management, AI literacy, Model Optimization
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Waste Minimization, Environmental Engineering, Sustainable Engineering, Civil Engineering, Environmental Regulations, Sustainable Technologies, Environmental Resource Management, Environmental Laws, Environmental Policy, Transportation Operations, Traffic Flow Optimization, Environmental Monitoring, Estimation, Internet Of Things, Emerging Technologies
★ 4.6 (16) · Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Data Cleansing, Data Preprocessing, Unit Testing, Package and Software Management, Python Programming, Data Science, Computer Programming, Debugging, Scripting, Software Development, Machine Learning, Database Application, Object Oriented Programming (OOP), Regression Analysis, Programming Principles, Scripting Languages, Databases, Object Oriented Design, Relational Databases, User Interface (UI) Design
Mixed · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Design Thinking, Change Management, Organizational Change, Innovation, Business Transformation, Ideation, Forecasting, Strategic Thinking, Organizational Strategy, Value Propositions, Market Opportunities, Lean Methodologies
★ 4.9 (46) · Advanced · Course · 1 - 4 Weeks