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.

Skills you'll gain: Visual Storytelling, AI powered creativity, Prompt Patterns, AI Workflows, Multimodal Prompts, Photo/Video Production and Technology, Prompt Engineering Tools, Education Software and Technology, Cinematography, AI literacy, AI Integrations, Ideation, Blogs, LLM Application, Graphic and Visual Design, Scripting, Graphic Design, Color Theory, Color Matching, Marketing
★ 3.8 (68) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Negotiation, Critical Thinking and Problem Solving, Prioritization, Conflict Management, Time Management, De-escalation Techniques, Communication, Stress Management, Empathy & Emotional Intelligence, Problem Solving, Closing (Sales), Critical Thinking, Communication Strategies, Business Priorities, Goal-Oriented, Professionalism, Emotional Intelligence, Business Ethics, Goal Setting, Self-Awareness
★ 4.7 (403) · Beginner · Specialization · 3 - 6 Months

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Event-Driven Programming, Distributed Computing, Java Programming, Dataflow, Java, OS Process Management, Scala Programming, Data Structures, System Programming, Programming Principles, Servers, Application Frameworks, Computer Programming, Algorithms, Performance Tuning, Computer Science, Functional Design
★ 4.6 (1.6K) · Intermediate · Specialization · 3 - 6 Months

Snowflake
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI, AI Orchestration, Fine-tuning, Agentic Workflows, AI Workflows, Generative Model Architectures, LLM Application, Data Engineering, Data Manipulation, Model Context Protocol, Data Store, Large Language Modeling, Artificial Intelligence, Application Deployment, Tool Calling, Data Warehousing, Embeddings, SQL
★ 4.7 (284) · Beginner · Professional Certificate · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Semiconductors, Display Devices, Computer Displays, Systems Design, Electrical Engineering, Technical Design, Electronics, Electronics Engineering, Electrical and Computer Engineering, Engineering, Scientific, and Technical Instruments, Hardware Design, Equipment Design, Materials science, Electronic Components, Image Quality, Engineering Analysis, Engineering Calculations, Mathematical Modeling, Performance Testing, Physics
★ 3.8 (119) · Advanced · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Core Data (Software), iOS Development, Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, Code Review, UI Components, Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Data Structures, Data Persistence, User Interface (UI), User Interface (UI) Design, Data Store, Application Development, Transaction Processing, Mobile Development
★ 4.4 (913) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Robotic Process Automation, Data Manipulation, Email Automation, Web Scraping, User Interface (UI), Business Process Automation, Automation, UI Components, Human Computer Interaction, Context Management, Network Protocols, Data Import/Export, Software Development Tools, Robotics, Data Management, Process Modeling, Computing Platforms, Package and Software Management, Programming Principles, Document Management
★ 4.7 (535) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, Relational Databases, Object-Relational Mapping, SQL, Data Access, Java Platform Enterprise Edition (J2EE), Databases, Database Design, Data Persistence, Object Oriented Design, Java, Data Manipulation, Data Mapping, Java Programming, Database Development, JUnit, Object Oriented Programming (OOP), Database Software, Query Languages
★ 4.7 (56) · Beginner · Specialization · 1 - 3 Months
Duke University
Skills you'll gain: Pandas (Python Package), Bash (Scripting Language), Version Control, Jupyter, Linux Commands, Git (Version Control System), Shell Script, Linux, Web Scraping, Linux Administration, Data Manipulation, MySQL, Microservices, AWS SageMaker, SQL, JSON, Command-Line Interface, Python Programming, Big Data, Data Science
★ 4.5 (485) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Windows Servers, Computer Security, Linux Administration, Disaster Recovery, Authorization (Computing), Linux, Linux Servers, Microsoft Windows, Authentications, Operating System Administration, OSI Models, User Accounts, Group Policy, Security Management, User Provisioning, Ubuntu, IT Management, System Monitoring, Systems Administration, Cybersecurity
★ 4.6 (2K) · Beginner · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Electrical Systems, Building Codes, Electrical Wiring, Construction Inspection, Electrical Power, Electric Power Systems, HVAC, Electrical Equipment, Power Electronics, Engineering Calculations, Architectural Design, Basic Electrical Systems, Electrical Safety, Engineering Practices, Mechanical Design, Energy and Utilities, Architectural Engineering, Systems Analysis, Construction, Land Development
★ 4.7 (1.5K) · Beginner · Specialization · 3 - 6 Months

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Database Systems, Computer Security Incident Management, Security Management, Databases, Operating System Administration, Database Administration, Routing Protocols, Application Development, Network Architecture, Linux Commands, TCP/IP, Operating Systems, Web Design and Development, Cascading Style Sheets (CSS), Scripting Languages, Web Development, Data Structures, Data Analysis, Software Development
★ 4.7 (392) · Beginner · Professional Certificate · 3 - 6 Months