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: Cucumber (Software), Selenium (Software), Apache Maven, Java, Object Oriented Programming (OOP), Issue Tracking, Gherkin (Scripting Language), Test Automation, Behavior-Driven Development, Test Execution Engine, Test Case, Debugging, Integration Testing, Data Structures
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Constructive Feedback, Cooperation, Independent Thinking, Empathy, Rapport Building, Teamwork, Collaboration, Relationship Building, Diversity and Inclusion, Emotional Intelligence, Cognitive flexibility, Communication
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: DevSecOps, DevOps, User Centered Design, Usability, Systems Integration, User Experience Design, Systems Analysis, System Implementation, Human Computer Interaction, Application Security, Agile Methodology, Information Systems, Software Development, CI/CD, Secure Coding, Security Testing, User Feedback, Project Management Software, Information Technology, Database Management Systems
Build toward a degree
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Google Analytics, Web Analytics, Content Performance Analysis, Performance Metric, Responsive Web Design
Mixed · Course · 1 - 3 Months

Skills you'll gain: Calendar Management, Virtual Teams, Telecommuting, Team Building, Teamwork, Collaboration, Productivity, Professional Development, Time Management, Expectation Management, Organizational Change, Communication Strategies, Communication, Digital Communications
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Rust (Programming Language), System Programming, Package and Software Management, Data Structures, Software Installation, Test Data, Programming Principles, Secure Coding, Maintainability, Debugging, Software Design Patterns, Integrated Development Environments, Data Sharing, Data Management, Command-Line Interface, Capacity Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: PySpark, Apache Spark, Apache Hadoop, Data Pipelines, Big Data, Data Storage Technologies, Data Processing, Distributed Computing, Data Analysis Expressions (DAX), Data Storage, Data Transformation, SQL, Data Manipulation, Performance Tuning
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Team Management, Team Building, Teamwork, Supervision, Collaboration, Professional Development, Leadership, Accountability, Conflict Management, Employee Engagement, Leadership Development, Emotional Intelligence, Safety Culture
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Workplace inclusivity, Diversity and Inclusion, Cultural Diversity, Empathy, People Management, Emotional Intelligence, Disabilities, Organizational Leadership, Team Management, Safety Culture, Leadership and Management, Leadership, Collaboration, Self-Awareness, Communication
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Responsible AI, AI Security, Telehealth, Health Technology, Generative AI, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Healthcare Ethics, Regulatory Compliance, Health Care Procedure and Regulation, Security Strategy, Medical Privacy, Data Security, Analysis, Innovation, Design
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), UI Components, Interactive Design, HTML and CSS, User Interface (UI), Interaction Design, Responsive Web Design, User Interface (UI) Design, Web Components, Web Design, Animations, Web Development
Intermediate · Course · 1 - 4 Weeks