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.

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Benefits Administration, Compensation and Benefits, Compensation Management, Communication Planning, Administration, Communication Strategies, Program Evaluation, Strategic Communication, Human Resource Strategy, Business Strategy, Regulatory Requirements, Regulatory Compliance, Law, Regulation, and Compliance, Brokerage, Diversity and Inclusion
★ 4.8 (9) · Beginner · Course · 1 - 4 Weeks

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

Macquarie University
Skills you'll gain: Data Security, Threat Detection, Cybersecurity, Cyber Attacks, Cyber Risk, Data Management, Security Management, Encryption, Security Software, Data Sharing, Security Strategy, Network Security, Data Access, Risk Modeling, Statistical Methods
★ 4.6 (15) · Beginner · Course · 1 - 3 Months

Peking University
Skills you'll gain: Laboratory Research, Laboratory Experience, Science and Research, Scientific Methods, Experimentation, Molecular Biology, Research Design, Biology, Biotechnology, Laboratory Equipment, Specimen Preparation, Life Sciences, Cell Biology, Verification And Validation
★ 4.8 (9) · Beginner · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Virtual Networking, Amazon Web Services, Network Architecture, Network Infrastructure, Network Routing, General Networking, Network Monitoring, Network Planning And Design, Network Security, Remote Access Systems
★ 3.8 (10) · Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Responsible AI, AI literacy, Prompt Patterns, Prompt Engineering, AI Enablement, AI Personalization, Communication Strategies, Artificial Intelligence, Generative AI, Communication, AI Integrations, AI Security, Business Communication, Business Process Automation, Automation, Workflow Management, Content Creation, Critical Thinking, Verification And Validation, Business Operations
Beginner · Course · 1 - 3 Months

Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Structural Engineering, Structural Analysis, Construction, Construction Engineering, Building Codes, Civil Engineering, Engineering Practices, Architecture and Construction, Architectural Engineering, Commercial Construction, Building Design
★ 4.6 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Redis, Restful API, ASP.NET, .NET Framework, Application Programming Interface (API), Object-Relational Mapping, API Design, PostgreSQL, Middleware, Maintainability, Software Architecture, Software Design Patterns, Distributed Computing, Data Validation
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Computational Logic, Theoretical Computer Science, System Requirements, Functional Specification, Agentic systems, Requirements Analysis, Systems Analysis, Verification And Validation, Mathematical Modeling, Control Systems, Linear Algebra, Mathematical Theory & Analysis, Applied Mathematics, Numerical Analysis
★ 3.4 (11) · Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Rapport Building, Relationship Building, Research, Planning, Goal-Oriented, Professionalism, Resilience, Professional Development, Communication Strategies, Resourcefulness, Problem Solving, Persistence, Persuasive Communication, Time Management, Overcoming Obstacles, Communication, Strategic Thinking
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Accounts Payable, Accounts Payable and Receivable, Financial Data, Make.com, Financial Forecasting, Financial Management, Credit Risk, Generative AI, Financial Controls, Financial Analysis, Finance, Billing & Invoicing, Financial Auditing, Artificial Intelligence, ChatGPT, Accounting, Tax Compliance, Tax Management, Automation, No-Code Development
Intermediate · Course · 1 - 4 Weeks