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.

Arizona State University
Skills you'll gain: Team Management, Leadership, Visionary, Team Leadership, Succession Planning, Leadership Development, Initiative and Leadership, Strategic Leadership, Collaboration, Leadership and Management, Communication, Communication Strategies, Business Leadership, People Development, Trustworthiness, Motivational Skills, Workplace inclusivity, Employee Coaching, Conflict Management, Emotional Intelligence
Beginner · Course · 1 - 3 Months

Skills you'll gain: Video Game Development, Game Design, Development Environment, Data Structures, Computer Programming, Programming Principles, User Interface (UI), Scripting Languages, Debugging
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Analytics, Marketing Budgets, Dashboard, Regression Analysis, Marketing Effectiveness, Data-Driven Decision-Making, Analytics, Statistical Analysis, Statistical Methods, Marketing Strategies, Data Analysis, Return On Investment, Data Visualization, Data Storytelling, Marketing Channel, Budgeting
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Theoretical Computer Science, Algorithms, Graph Theory, Data Structures, Operations Research, Public Key Cryptography Standards (PKCS), Cryptography, Programming Principles, Computational Thinking, Pseudocode, Design Strategies, Computer Science, Tree Maps, Encryption, Linear Algebra, Combinatorics, Data Science, Mathematical Modeling, Advanced Mathematics, Python Programming
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Project Management, Project Management Software, Project Coordination, Strategic Communication, Communication, Internal Communications, Team Oriented, Proactivity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Google Analytics, Marketing Analytics, Performance Reporting, Looker (Software), Web Analytics and SEO, Customer Analysis, Marketing Strategies, Search Engine Optimization, A/B Testing, Google Ads, Data Storytelling, Smart Goals, Campaign Management, Analytics, Predictive Analytics, Analysis, Data Visualization, Target Audience, Process Improvement and Optimization, Process Optimization
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Web Development Tools, Web Design and Development, Web Development, Cascading Style Sheets (CSS), Web Design, Front-End Web Development, Javascript, Web Applications, Interactive Design, Full-Stack Web Development, Back-End Web Development
Beginner · Course · 1 - 3 Months

Intermediate · Course · 1 - 4 Weeks

Board Infinity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Command-Line Interface, C# (Programming Language), .NET Framework, Performance Tuning, Microsoft Visual Studio, Application Design, Application Programming Interface (API), Software Development Tools, File I/O, Authentications, Application Security, Software Testing, Unit Testing, Debugging
Beginner · Course · 3 - 6 Months

Skills you'll gain: CI/CD, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Threat Detection, Large Language Modeling, Intrusion Detection and Prevention, Cybersecurity, Cyber Security Strategy, Applied Machine Learning, Fraud detection, Cyber Engineering, IT Automation, Cyber Attacks, Anomaly Detection, Malware Protection, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Machine Learning, Cyber Risk, Deep Learning
Intermediate · Course · 3 - 6 Months