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: z/OS, Computer Architecture, Mainframe Computing, Mainframe Technologies, Microarchitecture, Systems Architecture, Hardware Architecture, Data Storage, Computer Science, Programming Principles, System Programming, Data Structures, Computational Logic, Computer Hardware, Program Development, Computer Programming, Memory Management
★ 3.6 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Video Editing, Video Production, Marketing Materials, Content Creation, Marketing Design, Content Marketing, Photo/Video Production and Technology, Editing, Marketing, Storytelling, Multimedia, Branding, Generative AI, Artificial Intelligence
Intermediate · Guided Project · Less Than 2 Hours

Edureka
Skills you'll gain: Model Context Protocol, OpenAI API, Retrieval-Augmented Generation, AI Orchestration, AI Workflows, OpenAI, Model Deployment, LLM Application, Agentic Workflows, Generative AI Agents, AI Integrations, Embeddings, Cloud Deployment, Artificial Intelligence and Machine Learning (AI/ML), Application Deployment, Decision Intelligence, Agentic systems, Prompt Engineering, Application Programming Interface (API), Responsible AI
★ 3.3 (6) · Intermediate · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: Prompt Patterns, Prompt Engineering Tools, LangChain, Retrieval-Augmented Generation, Generative AI, AI Workflows, LLM Application, Large Language Modeling, OpenAI API, Data Synthesis
★ 4.3 (7) · Beginner · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Power Electronics, Electrical Systems, Electronic Systems, Electrical Engineering, Electric Power Systems, Three-Phase, Electronics Engineering, Electronics, Control Systems, Model Based Systems Engineering, Simulation and Simulation Software, Simulations, Hardware Design, System Design and Implementation, Design Specifications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Object Oriented Programming (OOP), CI/CD, Test Script Development, File I/O, Unit Testing, Devops Tools, Continuous Integration, Jupyter, Data Import/Export, DevOps, IT Automation, Application Programming Interface (API), Program Development, Software Testing, Maintainability, Scripting, Integrated Development Environments, Python Programming, Development Environment
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Make.com, Email Automation, Deepseek, Agentic Workflows, AI Workflows, LLM Application, DeepSeek API, No-Code Development, Automation, AI Integrations, Debugging
★ 4.6 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Data Transformation, Real Time Data, Fraud detection, Data Pipelines, Apache Spark, Power BI, PySpark, Performance Tuning, Grafana, Disaster Recovery, Data Architecture, Prometheus (Software), Data Integrity, Scalability, Data Processing, Data Governance, Event-Driven Programming, System Monitoring, Docker (Software)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Restful API, Data Mapping, Data Store, Scalability, NoSQL, Query Languages, Data Import/Export, Big Data, Software Installation
★ 4.7 (9) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Figma (Design Software), User Interface and User Experience (UI/UX) Design, User Experience Design, UI Components, Responsive Web Design, Animations, Web Content Accessibility Guidelines, User Interface (UI) Design, Interactive Design, Interaction Design, Prototyping, Collaborative Software, Software Documentation
★ 4.5 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Assessments, Network Protocols, Network Analysis, Network Monitoring, Image Analysis, Virtual Machines, Virtualization and Virtual Machines, Virtual Environment, Open Source Technology, Command-Line Interface, Software Installation, Linux, Microsoft Windows
★ 4.6 (14) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Amazon Web Services, Tensorflow, Large Language Modeling, Applied Machine Learning, Machine Learning Methods, Natural Language Processing, Artificial Intelligence, Classification Algorithms, Software Design, Model Evaluation
Intermediate · Course · 1 - 4 Weeks