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: Team Building, Stakeholder Engagement, Communication Strategies, Stakeholder Analysis, Interpersonal Communications, Internal Communications, Discussion Facilitation
★ 4.5 (10) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Data Storytelling, SQL, Data Engineering, Data Presentation, Key Performance Indicators (KPIs), Dashboard Creation, Star Schema, Dashboard, Data Modeling, Data Quality, Business Analytics, Database Design, Data Mart, Business Intelligence, Analytics, YAML, Data Pipelines, Data Transformation, Performance Tuning, Analysis
★ 3.8 (6) · Intermediate · Specialization · 1 - 3 Months

MathWorks
Skills you'll gain: Model Based Systems Engineering, Systems Integration, Simulation and Simulation Software, Robotics, Mathematical Modeling, Simulations, Engineering Software, Engineering, Electronic Systems, Mechanical Engineering, Control Systems
★ 4.8 (13) · Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, AI Personalization, Education Software and Technology, Generative AI Agents, Developing Training Materials, AI Enablement, Workforce Development, Artificial Intelligence and Machine Learning (AI/ML), Performance Analysis, Learning Management Systems, Generative AI, Instructional Design, AI literacy, HR Tech, Learning Styles, Content Creation, Learning Theory, Human Learning, Learning Strategies, Childhood Education and Development
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

American Council on Exercise
Skills you'll gain: Selling Techniques, General Sales Practices, Sales Strategy, Exercise Science, Sales, Goal Setting, Health And Wellness Coaching, Customer Retention, Sales Prospecting, Smart Goals, Nutrition and Diet, Client Services, Customer Acquisition Management, Nutrition Education, Workplace inclusivity, Motivational Interviewing, Kinesiology, Safety Assurance, Active Listening, Health Education
★ 4.2 (24) · Beginner · Specialization · 1 - 3 Months

Michigan State University
Skills you'll gain: Game Design, Design, Virtual Reality, User Experience Design, Design Strategies, Diversity Awareness, Design Research, Augmented and Virtual Reality (AR/VR), Psychology, Virtual Environment, Cultural Sensitivity, Cultural Diversity
★ 3.8 (27) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Payment Systems, Risk Analysis, Blockchain, Risk Management Framework, Risk Management, FinTech, Market Liquidity, Cyber Risk, Financial Systems, Financial Regulation, Digital Assets, Bank Regulations, Liquidation, Distributed Denial-Of-Service (DDoS) Attacks, Financial Analysis, Regulatory Compliance, Asset Management, Agentic systems, Governance, Market Dynamics
★ 5 (23) · Beginner · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Electronic Hardware, Electronic Components, Electronics, Hardware Design, Music, Musical Composition, Embedded Systems, System Configuration, Music Theory, Digital Communications, Creative Design, Programming Principles, Physics
★ 4.6 (14) · Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Corporate Sustainability, Sustainable Technologies, Sustainable Development, Sustainable Design, Sustainable Systems, Environmental Social And Corporate Governance (ESG), Supply Chain Management, Supply Chain Planning, Supply Chain, Supply Chain Systems, Transportation, Supply Chain, and Logistics, Case Studies, Logistics, Business Technologies, Logistics Management, Climate Change Mitigation, Corporate Strategy, Transportation Operations, Waste Minimization
★ 4.9 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft SQL Servers, SQL, Database Development, Database Software, Database Design, Database Theory, Stored Procedure, Relational Databases, Transact-SQL, Database Systems, Database Architecture and Administration, Query Languages, Data Integrity, Microsoft Development Tools, Scripting, Authentications, User Accounts, Identity and Access Management
★ 4.9 (7) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Evaluation, Data Preprocessing, JUnit, Model Training, Build Tools, MLOps (Machine Learning Operations), Java, Performance Tuning, Decision Tree Learning, Classification And Regression Tree (CART), Apache Maven, Data Structures, Random Forest Algorithm, Gradle, Data Pipelines, Software Architecture, Software Design, Object Oriented Programming (OOP), Apache, Machine Learning
Intermediate · Specialization · 3 - 6 Months