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.

EDUCBA
Skills you'll gain: Embedded Software, Real-Time Operating Systems, Software Development, Software Design, Software Architecture, Embedded Systems, Configuration Management, Development Environment, Middleware, Systems Architecture, Application Development, Extensible Markup Language (XML), System Configuration, Application Frameworks
★ 4.6 (332) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Prioritization, Time Management, Business Priorities, Goal-Oriented, Smart Goals, Goal Setting, Personal Development, Overcoming Obstacles, Delegation Skills, Plan Execution, Professionalism, Mental Concentration, Team Oriented
★ 4.7 (113) · Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Database Systems, Database Theory, Relational Databases, Database Management, SQL, Databases, Database Design, Database Development, Database Software, Database Application, Database Management Systems, Information Systems, MySQL, Query Languages, Data Modeling, Transaction Processing, MySQL Workbench, Information Systems Security, Data Integrity, Performance Tuning
★ 4.4 (462) · Intermediate · Course · 1 - 3 Months
Duke University
Skills you'll gain: Deductive Reasoning, Logical Reasoning, Computational Logic, Verification And Validation
★ 4.3 (424) · Beginner · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Quantitative Research, Scientific Methods, Research Design, Science and Research, Research Methodologies, Research, Research and Design, Data Collection, Peer Review, Data Analysis, Psychology, Data Validation
★ 4.8 (193) · Beginner · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Budget Management, Budgeting, Financial Management, Operating Budget, Cost Control, Performance Management, Performance Measurement, Business Planning, Business Strategy, Strategic Planning, Variance Analysis, Cross-Functional Collaboration, Forecasting
★ 4.5 (319) · Intermediate · Course · 1 - 3 Months

Caltech
Skills you'll gain: Specimen Preparation, Medical Imaging, Image Quality, Biomedical Technology, Image Analysis, Cell Biology, Engineering, Scientific, and Technical Instruments, Laboratory Equipment, Laboratory Techniques, Digital Signal Processing, Scientific Visualization, Spatial Analysis
★ 4.9 (273) · Mixed · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Statistical Inference, Regression Analysis, Applied Machine Learning, Statistical Methods, Statistical Machine Learning, Statistical Analysis, Statistical Hypothesis Testing, Statistical Modeling, Machine Learning, Experimentation, Data Collection, Probability & Statistics, Research Design
★ 3.3 (107) · Advanced · Course · 1 - 3 Months

Peking University
Skills you'll gain: Software Engineering, Software Testing, Object Oriented Design, Unified Modeling Language, Software Development Tools, System Requirements, Requirements Analysis, Agile Software Development, Software Quality (SQA/SQC), Agile Methodology, Software Development Life Cycle, Software Development Methodologies, Functional Requirement, Development Environment, Software Engineering Tools, Software Development, Software Design, Systems Analysis, Software Design Documents, Systems Design
★ 4.6 (57) · Intermediate · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Programmable Logic Controllers, Control Systems, Machine Controls, Manufacturing Processes, Process Control, Real-Time Operating Systems, Manufacturing Operations, Automation, Production Process, Digital Transformation, Systems Architecture, Digital Signal Processing, Software Architecture, Software Systems
★ 4.6 (1.4K) · Beginner · Course · 1 - 4 Weeks
University of Pennsylvania
Skills you'll gain: People Management, Employee Performance Management, Leadership and Management, Human Capital, Decision Making, Organizational Change, Organizational Structure, Performance Appraisal, Team Motivation, Organizational Leadership, Organizational Development, Diversity Equity and Inclusion Initiatives, Compensation Management, Compensation and Benefits, Job Analysis, Recruitment, Change Management, Constructive Feedback
★ 4.7 (532) · Beginner · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, C (Programming Language), Code Reusability, Algorithms, Data Structures
★ 4.7 (813) · Mixed · Course · 1 - 3 Months