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.

Whizlabs
Skills you'll gain: Infrastructure Security, Vulnerability Scanning, Network Security, Amazon Web Services, Firewall, Virtual Networking, Virtual Private Networks (VPN), Security Controls, Cloud Security, AWS Identity and Access Management (IAM), Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hypertext Markup Language (HTML), Course Development, Learning Management Systems, Collaboration, Intranet, Training and Development, Teamwork, Content Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Test Automation, Test Data, Test Case, Test Script Development, Test Execution Engine, Regression Testing, Integration Testing, Java, Performance Testing, Automation
Intermediate · Course · 3 - 6 Months
University of Colorado Boulder
Skills you'll gain: Design Elements And Principles, Graphic and Visual Design, Visual Design, Design, Media and Communications, Color Theory, Art History, Typography, Creativity, Psychology
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Web Design and Development, Responsive Web Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Azure DevOps, Azure DevOps Pipelines, Continuous Delivery, CI/CD, DevOps, Test Planning, Continuous Integration, Git (Version Control System), YAML, GitHub, Agile Methodology, Version Control, Agile Project Management, Application Deployment, Sprint Planning, Scrum (Software Development)
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Nursing, Science and Research, Clinical Research, Scientific Methods, Clinical Research Ethics, Medical Science and Research, Biostatistics, Epidemiology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Wireless Networks, Network Performance Management, Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Ansible, Network Administration, Firewall, Software-Defined Networking, Network Planning And Design, Network Infrastructure, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption
Advanced · Course · 3 - 6 Months

International Institute of Information Technology, Hyderabad
Skills you'll gain: Microarchitecture, Computer Architecture, Hardware Architecture, Systems Architecture, Computer Systems, Computer Hardware, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, Scripting, Scripting Languages, Data Structures, Development Environment, Microsoft Visual Studio, Integrated Development Environments, Computer Programming, Software Installation, Algorithms, Debugging
Beginner · Course · 1 - 3 Months

Universidad de Palermo
Skills you'll gain: Storytelling, Data Storytelling, Brand Strategy, Presentations, Branding, Persuasive Communication, Strategic Communication, Content Creation, Marketing Communications, Business Strategy, Drive Engagement
Intermediate · Course · 1 - 4 Weeks

American Psychological Association
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Probability & Statistics, Statistical Methods, Probability Distribution, Quantitative Research, Statistical Analysis, Statistical Software, Statistical Inference, Sampling (Statistics), Data Analysis, Analysis, Statistics, Probability, Analytical Skills, Regression Analysis, Psychology, Research Design, Research
Beginner · Specialization · 3 - 6 Months