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: File I/O, Object Oriented Programming (OOP), Debugging, JSON, Program Development, Data Structures, Code Review, Python Programming, Microsoft Visual Studio, Development Environment, Scripting, Maintainability, Integrated Development Environments, Package and Software Management, Authorization (Computing), Programming Principles, Computer Programming, Web Scraping, Application Programming Interface (API), Scalability
Beginner · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: LangGraph, LangChain, AI Workflows, LLM Application, Agentic systems, Prompt Engineering, Data Persistence, Context Management, Human Centered Design
Intermediate · Project · Less Than 2 Hours

Simplilearn
Skills you'll gain: Requirements Management, Project Management, Risk Management, Project Planning, Data Visualization, Agile Project Management, Microsoft Excel, Solution Design, Cost Management, Project Management Office (PMO), Business Analysis, Excel Formulas, Requirements Elicitation, Stakeholder Management, Scope Management, Pivot Tables And Charts, Dashboard, Business Analytics, Data Analysis, Data Validation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Access, Relational Databases, Object Oriented Programming (OOP), JUnit, Data Integrity, SQL, Java, Java Programming, Databases
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Building Design, Sustainable Technologies, Sustainable Development, Energy and Utilities, Electrical Power, Sustainable Architecture, Sustainable Engineering, Workforce Planning, Gap Analysis, Climate Change Mitigation, Training Programs, Emerging Technologies, Professional Networking, Semiconductors
Beginner · Course · 1 - 3 Months

The University of Sydney
Skills you'll gain: Blockchain, Distributed Computing, Security Engineering, Network Security, Scalability, Cryptography, Data Integrity, Transaction Processing, Algorithms
Beginner · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Compensation and Benefits, Compensation Management, Compensation Strategy, Benefits Administration, Human Resources, Human Resource Strategy, Job Analysis, Performance Review, Employee Retention, Organizational Strategy
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Application Development, Android (Operating System), Android Studio, Mobile Development, Software Development Tools, Game Design, Computer Programming Tools, Development Environment, Internet Of Things, Embedded Software, Web Servers, Web Applications, USB, Ubuntu, Peripheral Devices, Operating Systems, Software Installation, Command-Line Interface, System Configuration, Hardware Troubleshooting
Mixed · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Generative AI, Content Creation, Social Media Content, ChatGPT, Digital Content, Graphic and Visual Design, Prompt Engineering, Content Marketing, Writing, Target Audience
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Programming, Hardware Architecture, Embedded Systems, Computer Architecture, System Configuration, Debugging, Application Development
Intermediate · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Water Quality, Water Sustainability, Water Resource Management, Sustainable Development, Environmental Engineering, Hydrology, Environmental Monitoring, Civil Engineering, Sustainable Design, Human Centered Design, Risk Analysis, Continuous Monitoring, Internet Of Things, Machine Learning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploit development, OSI Models, Network Security, Exploitation techniques, TCP/IP, Cybersecurity, Vulnerability Scanning, Metasploit, Malware Protection, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Cyber Attacks, Wireless Networks, Application Security, Cyber Security Assessment, Network Monitoring, Linux, Object Oriented Programming (OOP), General Networking, Security Awareness
Intermediate · Specialization · 3 - 6 Months