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.

Board Infinity
Skills you'll gain: Test Planning, Test Tools, Software Testing, Configuration Management, Test Case, Integration Testing, System Testing, Test Automation, Software Development Life Cycle, Acceptance Testing, Software Technical Review, Code Review, Unit Testing, White-Box Testing, Regression Testing, Software Quality Assurance, Test Data, Risk Management, Risk Management Framework, Verification And Validation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Web Applications, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Statistical Process Controls, Six Sigma Methodology, Lean Methodologies, Statistical Hypothesis Testing, Process Capability, Statistical Analysis, Data Analysis, Continuous Improvement Process, Project Management, Project Planning, Statistics, Work Breakdown Structure, Lean Six Sigma, Operational Excellence, Data Collection, Process Improvement, Stakeholder Management, Quality Improvement, Quality Management
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Storyboarding, Canva (Software), Storytelling, Marketing Design, Content Creation, Presentations, Marketing Materials, Dashboard, Collaborative Software, Graphic Design, Marketing, User Accounts, Business
Intermediate · Guided Project · Less Than 2 Hours

Deep Teaching Solutions
Skills you'll gain: Student Engagement, Differentiated Instruction, Willingness To Learn, Persistence, Learning Theory, Problem Solving
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Application Deployment, Mobile Development, JSON, Google Cloud Platform, Restful API, Application Design, UI Components, Geospatial Information and Technology, Application Programming Interface (API), Data Persistence, Animations
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: HTML and CSS, Responsive Web Design, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), File Management, Web Design, Front-End Web Development, Web Development
Beginner · Course · 1 - 4 Weeks

Michigan State University
Skills you'll gain: Financial Statements, Intellectual Property, Income Statement, Business Planning, Balance Sheet, Financial Modeling, Organizational Structure, Business Strategies, Team Management, Cash Flows, Regulation and Legal Compliance, Legal Risk, Recruitment Strategies
Mixed · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Process Mapping, Operations Management, Process Analysis, Process Improvement, Revenue Management, Business Modeling, Supply Chain, Supply Chain Management, Business Process, Organizational Structure, Supply Chain Planning, Business Operations, Project Design, Lean Six Sigma, Operational Performance Management, Strategic Thinking, Materials Management, Business Strategy, Business Strategies, Strategic Decision-Making
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Oracle SQL Developer, Oracle Databases, PL/SQL, Database Design, SQL, Database Architecture and Administration, Stored Procedure, Database Management, Data Management, Network Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Software Quality Assurance, White-Box Testing, API Testing, Test Script Development, Debugging, Software Development Methodologies, User Acceptance Testing (UAT), JUnit, Maintainability, Development Testing, Selenium (Software), Scalability, Automation, Software Technical Review, DevOps, Regression Testing, Test Execution Engine, Security Testing
Beginner · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Statistical Inference, Regression Analysis, Statistical Methods, Sampling (Statistics), Statistical Modeling, Machine Learning, Experimentation, Data Collection, Probability & Statistics, Research Design, Econometrics, Program Evaluation, Logistic Regression
Advanced · Course · 1 - 3 Months