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.

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, Pseudocode, Computational Thinking, JSON, Web Development, Angular, Web Applications, Vue.JS, Data Import/Export, Application Development, Mobile Development, Debugging, Algorithms, Data Structures, Node.JS, Unit Testing, Web Development Tools, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: MySQL Workbench, Data-Driven Decision-Making, Exploratory Data Analysis, MySQL, Business Analytics, Data Analysis, Database Design, SQL, Analytical Skills, Data Presentation, Technical Communication, Relational Databases
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Databricks, Model Deployment, Responsible AI, Microsoft Azure, Data Science, Applied Machine Learning, MLOps (Machine Learning Operations), Predictive Modeling, Model Evaluation, Machine Learning, Data Preprocessing, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: C (Programming Language), Embedded Systems, Embedded Software, Debugging, System Programming, Hardware Architecture, Microarchitecture, Computer Architecture, Data Structures, Peripheral Devices
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MongoDB, Node.JS, Angular, Restful API, API Design, NoSQL, Bootstrap (Front-End Framework), Database Development, Scalability, JavaScript Frameworks, Authentications, Query Languages, Web Applications, Authorization (Computing), JSON, Javascript and jQuery, Database Management, Distributed Computing, Web Development Tools, Web Design and Development
Beginner · Specialization · 3 - 6 Months

Skillshare
Skills you'll gain: Animations, 3D Modeling, 3D Assets, Computer Graphics, Visualization (Computer Graphics), Graphical Tools, Timelines, Graphics Software, User Interface (UI), File Management, Image Quality, Layout Design, Software Versioning, Software Installation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Eclipse (Software), Test Tools, File Management, Cascading Style Sheets (CSS), Test Automation, Computer Programming, Development Environment, Integrated Development Environments, Software Testing, Test Script Development, Web Scraping, Data Validation, Test Case, Web Development Tools, Data Structures
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Web Servers, Java Programming, Object-Relational Mapping, Web Development, Context Management, Application Frameworks, Scripting, Middleware, Server Side, Data Storage, Session Initiation Protocols, Data Sharing, Data Persistence, Event-Driven Programming, Hypertext Markup Language (HTML)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Data Visualization, Data Ethics, Data Literacy, Data Analysis, Tableau Software, Data Integrity, Statistical Methods, Stakeholder Communications, Responsible AI, Small Data, Decision Making, Stakeholder Analysis, Key Performance Indicators (KPIs), Big Data, Sampling (Statistics), Data Sharing, Spreadsheet Software, Verbal Communication Skills, Solution Design, Root Cause Analysis
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Finite Element Methods, Simulation and Simulation Software, Engineering Analysis, Simulations, Mechanical Design, Process Engineering, Engineering, Verification And Validation
Beginner · Guided Project · Less Than 2 Hours

University of Florida
Skills you'll gain: Exercise Science, Sports Medicine, Athletic Training, Kinesiology, Physiology, Coaching, Rehabilitation, Injury Prevention, Stress Management, Planning, Human Musculoskeletal System
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Load Balancing, ASP.NET, Test Driven Development (TDD), Debugging, C# (Programming Language), Software Testing, Scalability, Performance Testing, Restful API, Unit Testing, Web Development, Microservices, .NET Framework, Object-Relational Mapping, Software Architecture, API Testing, Web Applications, Test Case, Distributed Computing, Redis
Intermediate · Specialization · 3 - 6 Months