Object Oriented Programming courses can help you learn core concepts like classes, objects, inheritance, and polymorphism. You can build skills in designing robust software architectures, implementing design patterns, and writing reusable code. Many courses introduce tools such as Java, Python, and C++, which are commonly used in software development, enabling you to apply your knowledge in practical coding projects. Additionally, you may explore frameworks that enhance object-oriented principles, further enriching your programming toolkit.

Scrimba
Skills you'll gain: React.js, Authentications, Frontend Performance, Authorization (Computing), Web Applications, Web Development, User Experience Design
★ 4.8 (17) · Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Video Game Development, Game Design, Debugging, Unity Engine, Program Development, Unreal Engine, Programming Principles, Integrated Development Environments, Computer Programming, C# (Programming Language), Scripting Languages, Scripting
★ 5 (6) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Flutter (Software), Mobile Development, Application Development, Mobile Development Tools, Data Validation, iOS Development, User Interface and User Experience (UI/UX) Design, Information Architecture, User Interface (UI) Design, User Interface (UI), Application Design, Cross Platform Development, UI Components, Interactive Design, Software Design, Interaction Design, Scalability, Usability, Verification And Validation
★ 4.9 (35) · Beginner · Specialization · 1 - 3 Months

Illinois Tech
Skills you'll gain: Time Series Analysis and Forecasting, R (Software), R Programming, Statistical Analysis, Statistical Software, Forecasting, Statistical Modeling, Data Analysis, Statistical Methods, Statistical Reporting, Predictive Modeling, Correlation Analysis, Statistical Visualization, Data Presentation, Probability & Statistics, Model Evaluation, Statistical Hypothesis Testing, Numerical Analysis, Data Transformation
★ 4.2 (9) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Frontend Integration, Application Programming Interface (API), API Gateway, Secure Coding, Cloud Development, Cloud Deployment, Database Development, Maintainability, Dataflow, Application Deployment, Server Side, Web Applications, Authentications, Authorization (Computing), Data Access
★ 4 (7) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Graph Theory, Data Structures, Algorithms, Computational Thinking, Programming Principles, Computer Programming, C++ (Programming Language), Theoretical Computer Science, Software Engineering, Geometry, Performance Tuning
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Database Design, Performance Tuning, Data Warehousing, Apache Spark, Data Architecture, SQL, Query Languages, Data Transformation, Disaster Recovery, Database Management, PySpark, Infrastructure as Code (IaC), Cloud Computing Architecture, Distributed Computing, Scalability, Data Pipelines, Performance Analysis, Root Cause Analysis, Cost Management, Resource Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: iOS Development, Swift Programming, Apple iOS, Core Data (Software), Interactive Design, User Interface (UI) Design, Data Persistence, Test Driven Development (TDD), Mobile Development, Application Design, Application Deployment, Animation and Game Design, Plot (Graphics), User Interface (UI), UI Components, Machine Learning Software, Software Architecture, Performance Tuning, Code Reusability, Data Integration
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: SQL Server Integration Services (SSIS), Extract, Transform, Load, Data Warehousing, Data Transformation, Data Manipulation, Data Analysis, Microsoft SQL Servers, Data Integration, Data Mining, Advanced Analytics, Pivot Tables And Charts, Data Processing, SQL, Data Import/Export, Dataflow, Workflow Management
★ 4.3 (20) · Mixed · Course · 1 - 3 Months

University of London
Skills you'll gain: JSON, Restful API, Javascript, Application Programming Interface (API), Web Services, Hypertext Markup Language (HTML), Front-End Web Development, Data Structures
★ 4.8 (6) · Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: AWS Identity and Access Management (IAM), Infrastructure as Code (IaC), Amazon Web Services, Amazon DynamoDB, Containerization, Amazon Elastic Compute Cloud, AWS CloudFormation, Continuous Integration, Amazon S3, Cloud Applications, Data Security, User Accounts, Load Balancing, Amazon CloudWatch, Security Controls, Encryption, DevOps, AWS Kinesis, Virtual Machines, Virtualization and Virtual Machines
★ 4.7 (10) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Gemini, LangChain, Google Gemini, Flutter (Software), Generative AI Agents, LLM Application, Generative Model Architectures, AI Workflows, Prompt Patterns, Generative AI, Agentic Workflows, AI Orchestration, AI Integrations, Cross Platform Development, AI literacy, Agentic systems, Application Development, Mobile Development, Mobile Development Tools, Front-End Web Development
★ 4 (12) · Beginner · Course · 1 - 4 Weeks