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.

American Psychological Association
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Statistical Methods, Quantitative Research, Statistical Analysis, Probability & Statistics, Statistical Inference, Statistics, Data Analysis, Regression Analysis, Research Design, Research, Psychology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Role-Based Access Control (RBAC), Postman API Platform, Authentications, API Testing, Authorization (Computing), Restful API, Secure Coding, Java Programming, Application Design, Spring Boot, User Accounts, API Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unreal Engine, Animation and Game Design, Game Design, Animations, Video Game Development, Artificial Intelligence, Augmented and Virtual Reality (AR/VR), User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Back-End Web Development, Front-End Web Development, OpenAI API, Full-Stack Web Development, Application Development, HTML and CSS, User Interface (UI), Application Programming Interface (API), User Interface and User Experience (UI/UX) Design, Figma (Design Software), Cloud API, Cascading Style Sheets (CSS), AI Personalization, Real Time Data
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Instagram, Social Media Management, Social Media Content, Social Media Marketing, Facebook, Social Media Strategy, Target Audience, Graphic Design
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: User Experience Design, User Flows, Wireframing, UI/UX Research, User Centered Design, User Interface and User Experience (UI/UX) Design, Usability, Prototyping, Design Software
Intermediate · Course · 1 - 4 Weeks

HubSpot Academy
Skills you'll gain: Sales Presentations, Prospecting and Qualification, Persona Development, Sales Strategy, Sales Process, Target Audience, Sales Pipelines, Sales, Lead Generation, Customer Analysis, Email Automation, Prioritization, Customer Engagement
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: OSI Models, Computer Networking, Teaching, TCP/IP, Student Engagement, Network Protocols, Pedagogy, Multimedia, Instructional Strategies, Cultural Diversity, Music
Beginner · Course · 1 - 3 Months

Skills you'll gain: React.js, ChatGPT, Cascading Style Sheets (CSS), Generative AI, Development Environment, Microsoft Visual Studio, Web Design and Development, Secure Coding, Node.JS, Prompt Engineering, Javascript, API Design, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unix Commands, Linux, Mac OS, File Management, Data Integrity
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Social Media Marketing, Social Media Campaigns, Social Media Content, Social Media, Facebook, Marketing Materials, Advertising, Data Visualization, Graphic Design, User Accounts
Beginner · Guided Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: Pandas (Python Package), Databases, Data Pipelines, Performance Tuning, Data Transformation, Data Structures, Data Analysis
Intermediate · Course · 1 - 4 Weeks