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 at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Continuous Monitoring, Incident Response, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Computer Security Incident Management, Cyber Security Policies, Cyber Security Assessment, Information Assurance, Network Security, Risk Management Framework, Cloud Security, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Requirements Analysis, Network Architecture, Network Security, Internet Of Things, Cybersecurity, Web Services, Encryption, Embedded Systems, Network Protocols, Public Key Cryptography Standards (PKCS), Simple Object Access Protocol (SOAP), TCP/IP, Restful API, Information Privacy
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Object-Relational Mapping, Java, Application Servers, Middleware, Application Deployment, Data Persistence, Event-Driven Programming, Enterprise Application Management, Server Side, Context Management, Business Logic
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Health Informatics, Informatics, Health Care, Healthcare Project Management, Systems Analysis, Business Systems Analysis, Technical Communication, Requirements Analysis, Data Access, User Centered Design
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: SQL, SAS (Software), Database Management, Query Languages, Case Studies, Data Access, Program Development, Statistical Programming, Data Presentation, Scripting, Perl (Programming Language), Data Processing, Automation, Data Integration, Stored Procedure, Data Manipulation, Data Transformation, Debugging, Data Validation, Data Analysis
Build toward a degree
Intermediate · Professional Certificate · 3 - 6 Months

Scrimba
Skills you'll gain: HTML and CSS, Mobile Development, ChatGPT, GitHub, Front-End Web Development, Javascript, Application Deployment, Web Development, Responsive Web Design, Video Game Development, Application Development, Cascading Style Sheets (CSS), Computer Programming, Database Application, Machine Learning
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: PHP (Scripting Language), Model View Controller, Restful API, Web Development, Object-Relational Mapping, Web Applications, Full-Stack Web Development, Development Environment, Software Testing, Back-End Web Development, Application Frameworks, Database Management, Application Security, Authentications, Authorization (Computing), Package and Software Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, React.js, Front-End Web Development, Mockups, Web Design and Development, Web Development, Web Components, Figma (Design Software), Code Review, Application Deployment, Web Analytics and SEO, Database Development, Software Development, GitHub, Development Testing
Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Event Planning, Canva (Software), Event Management, Digital Content, Event Marketing, Graphic Design, Graphic and Visual Design Software, Social Media Campaigns, Social Media, Product Design, Digital Marketing, Marketing Communications
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Qualitative Research, Market Research, Quantitative Research, Data-Driven Decision-Making, Benchmarking, Data Presentation, Descriptive Statistics, Competitive Analysis, Interactive Data Visualization, Analytical Skills, Research Design, Market Dynamics, Data Analysis, Data Visualization Software, Statistical Reporting, Data Collection, Data Analysis Software, Microsoft Excel, R Programming
Intermediate · Specialization · 1 - 3 Months

Deep Teaching Solutions
Skills you'll gain: Lifelong Learning, Learning Strategies, Time Management, Human Learning, Mental Concentration, Creativity, Growth Mindedness, Persistence, Curiosity, Collaboration, Personal Development, Stress Management
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: AI Enablement, Artificial Intelligence, Materials science, Artificial Neural Networks, Image Analysis, Computer Vision, Manufacturing Processes, Machine Learning, Process Control
Beginner · Course · 1 - 3 Months