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.

Skills you'll gain: Bioinformatics, Scientific Visualization, Data Access, Extensible Languages and XML, Extensible Markup Language (XML), Data Visualization, Database Software, Data Manipulation, File I/O, Python Programming
★ 4.5 (47) · Intermediate · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: Authentications, Secure Coding, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Security Awareness
★ 4.5 (70) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: SQL, PostgreSQL, Query Languages, Database Management, Database Systems, Data Manipulation
★ 4.6 (42) · Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Performance Tuning, Memory Management, Embedded Software, Microarchitecture, Embedded Systems, System Programming, Secure Coding, System Configuration, Digital Signal Processing, Security Controls, Computer Architecture, Hardware Architecture, Authentications
★ 4.8 (23) · Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Correlation Analysis, Statistical Analysis, Statistical Software, Statistical Programming, Statistical Methods, Probability & Statistics, Statistical Visualization, Analytics, Data Analysis Software, Data Analysis, R (Software), Business Analytics, Data Visualization, R Programming, Statistics, Statistical Inference, Variance Analysis, Descriptive Statistics, Sampling (Statistics)
★ 4.8 (32) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Software Documentation, Java, API Design, Java Programming, Back-End Web Development, Application Programming Interface (API), Enterprise Application Management, Application Deployment, Databases, Data Persistence
★ 3.7 (15) · Beginner · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Responsive Web Design, Web Design, GitHub, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, User Experience Design, Usability, User Experience, Javascript, Web Content Accessibility Guidelines, Browser Compatibility, User Story, Web Design and Development, Front-End Web Development, GitHub Copilot, Mobile Development, Semantic Web, Git (Version Control System)
★ 4.7 (34) · Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Microservices, DevOps
★ 4.2 (54) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, z/OS, COBOL (Programming Language), Unit Testing, Systems Analysis, Systems Development, Pseudocode, Program Development, Software Development Methodologies, Agile Methodology, Software Development, Software Design, Agile Software Development, Systems Architecture, Mainframe Computing, Scrum (Software Development), Test Planning, Mainframe Technologies, Software Testing
★ 4.2 (75) · Beginner · Course · 1 - 3 Months

Skills you'll gain: LangChain, Prompt Engineering, LLM Application, Large Language Modeling, Retrieval-Augmented Generation, Vector Databases, Tool Calling, Embeddings, OpenAI API, ChatGPT, Google Gemini, AI Workflows, Generative AI Agents, Token Optimization, Agentic Workflows
★ 4.4 (39) · Beginner · Course · 1 - 4 Weeks

Epic Games
Skills you'll gain: Unreal Engine, Video Game Development, 3D Modeling, Animation and Game Design, 3D Assets, Visualization (Computer Graphics), Game Design, Computer Graphics, Multimedia, Animations, Virtual Environment, Performance Tuning, Model Optimization, Design Elements And Principles, Prototyping, Musical Composition
★ 3.6 (33) · Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, Unstructured Data, LLM Application, Large Language Modeling, Data Preprocessing, Metadata Management, Data Processing, JSON, Image Analysis, Data Transformation, Document Management, Vision Transformer (ViT)
★ 4.3 (17) · Beginner · Project · Less Than 2 Hours