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.

University of Colorado Boulder
Skills you'll gain: Database Design, SQL, Database Management Systems, NoSQL, Relational Databases, Data Warehousing, Database Theory, Database Architecture and Administration, Database Administration, Databases, Database Systems, Database Management, Data Modeling, Query Languages, Big Data, Database Application, Data Integrity, Data Access, Data Science, Data Analysis
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Threat Modeling, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Authentications, OAuth, Development Testing, Software Development Life Cycle, Unified Modeling Language, Authorization (Computing), Single Sign-On (SSO), Software Development, Security Software, Vulnerability Assessments, Data Validation, Cyber Security Assessment, Cyber Security Strategy, Cybersecurity, Role-Based Access Control (RBAC)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Extensible Languages and XML, White-Box Testing, Test Script Development, Scenario Testing
Beginner · Course · 1 - 4 Weeks

Knowledge Accelerators
Skills you'll gain: Power BI, Data Presentation, Microsoft Excel, Dashboard, Excel Formulas, Data Modeling, Business Reporting, Data Entry, Data Analysis, Data Storytelling, Data-Driven Decision-Making, Business Analytics, Analytics, Business Modeling, Data Processing, Business Analysis, Data Cleansing, Data Synthesis, Trend Analysis, Data Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: iOS Development, Swift Programming, Apple iOS, Core Data (Software), Data Persistence, Test Driven Development (TDD), Mobile Development, Application Design, Application Deployment, Apple Xcode, Plot (Graphics), User Interface (UI), Data Store, Model View Controller, Machine Learning Software, Software Architecture, Performance Tuning, Database Development, Real Time Data, Data Integration
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Test Automation, Test Case, Software Testing, Automation, Continuous Integration, Acceptance Testing, Test Execution Engine, Integration Testing, Test Planning, Mobile Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Modeling, Database Design, Extract, Transform, Load, Data Warehousing, Data Pipelines, Business Intelligence, Data Mart, Database Management, Data Management, Process Optimization, Data Quality, Data Transformation, Performance Testing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: WordPress, Cloud Hosting, Frontend Performance, Web Design, Secure Coding, Performance Tuning, Amazon Web Services, Order Management, Product Assortment, Data Store, Data Management, Web Design and Development, Usability, Data Security, Cloud Deployment, Remote Access Systems, Web Development, Web Servers, Servers, Content Management Systems
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Robotic Process Automation, Email Automation, Business Process Automation, Automation, Transaction Processing, Web Applications, Software Architecture, Maintainability, Data Import/Export, Debugging
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cucumber (Software), Software Testing, Selenium (Software), Gherkin (Scripting Language), JUnit, Verification And Validation, Test Automation, Unit Testing, Security Testing, Regression Testing, System Testing, Test Case, Software Development Tools, Testability, White-Box Testing, Behavior-Driven Development, Code Coverage, Performance Testing, Development Testing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Deepseek, AI Workflows, LLM Application, Artificial Intelligence, Model Deployment, Large Language Modeling, Deep Learning, Software Installation, Development Environment, System Configuration, Code Review, Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, AI Personalization, Consumer Behaviour, Patient Preparation, Supervised Learning, User Research, Health And Wellness Coaching, Usability Testing, Customer Insights, Usability, AI Security, Human Factors, Responsible AI, Empathy & Emotional Intelligence, Behavioral Management, Stress Management, Data Ethics, Decision Making, Mindfulness, Goal Setting
Beginner · Specialization · 3 - 6 Months