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.

SkillUp
Skills you'll gain: Forecasting, Classification Algorithms, Dimensionality Reduction
Intermediate · Specialization · 1 - 3 Months

PracticalGrowth
Skills you'll gain: Constructive Feedback, Delegation Skills, Performance Management, Performance Review, Coaching, Employee Coaching, Employee Performance Management, People Development, Training and Development, Performance Measurement, Mentorship, Key Performance Indicators (KPIs), Leadership and Management, Goal Setting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Artificial Intelligence
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Servers, Data Manipulation, System Requirements
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Geographic Information Systems, Package and Software Management, Scripting, Statistical Analysis, Probability & Statistics, JSON, Image Analysis, Data Validation, Web Scraping, Intelligence Collection and Analysis, Data Analysis, Statistics, Python Programming, Data Processing, Restful API, File Transfer Protocol (FTP), Open Source Technology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Swift Programming, Apple iOS, iOS Development, Apple Xcode
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: C# (Programming Language), Restful API, ASP.NET, Model View Controller, .NET Framework, Docker (Software), Azure DevOps, Object Oriented Programming (OOP), Microservices, Containerization, JSON, API Design, DevOps, Web Services, Middleware, CI/CD, Back-End Web Development, Web Applications, Programming Principles, Server Side
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Financial Statement Analysis, Management Accounting, Revenue Recognition, Forecasting, Financial Analysis, Cost Accounting, Budget Management, Inventory Accounting, Budgeting, Performance Measurement, Income Statement, Balance Sheet, Cost Management, Analytics, Enterprise Resource Planning, Systems Analysis, Information Systems, Management Information Systems, Business Analytics, Finance
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Plot (Graphics), Swift Programming, UI Components, Apple iOS, iOS Development, Interactive Data Visualization, Apple Xcode, User Interface (UI), User Interface (UI) Design, Digital Design, Color Theory, Hypertext Markup Language (HTML), Animations, Data Management, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Postman API Platform, JUnit, Test Automation, API Testing, Software Quality Assurance, Test Tools, Test Script Development, Quality Assurance, Unit Testing, Software Testing, Continuous Integration, Automation, Data Validation, Performance Testing, Test Case, Agile Methodology, Integration Testing, Debugging, Javascript
Intermediate · Specialization · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Unified Modeling Language, Software Visualization, Diagram Design, Software Design, Object Oriented Design, Software Engineering, Requirements Analysis
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Brand Awareness, Branding, Brand Strategy, Style Guides, Brand Loyalty, Brand Management, Auditing, Content Strategy, Graphic and Visual Design, Stakeholder Communications, Marketing Management, Case Studies, Report Writing, Consumer Behaviour
Intermediate · Course · 1 - 4 Weeks