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.

University of California, Davis
Skills you'll gain: Content Marketing, Content Performance Analysis, Marketing Strategy and Techniques, Key Performance Indicators (KPIs), Search Engine Optimization, Strategic Marketing, Content Creation, Marketing Channel, Customer Insights, Writing, Marketing Analytics, Web Analytics and SEO, Social Media Campaigns, Scalability, Customer Engagement, Email Marketing, Brand Management, Marketing, Advertising Campaigns, Content Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Rust (Programming Language), File I/O, Data Structures, System Programming, Secure Coding, Software Design Patterns, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Tool Calling, Large Language Modeling, OpenAI API, LLM Application, Prompt Patterns, Multimodal Prompts, OpenAI, AI Orchestration, AI Enablement, Spring Framework, Generative AI, Image Analysis, Embeddings, Spring Boot, Vector Databases, JSON, Real Time Data
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Apple iOS, Swift Programming, UI Components, Animations, Apple Xcode, User Interface (UI), Mobile Development, User Interface (UI) Design, Interactive Design, Motion Graphics, Development Environment, Debugging
Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: Timelines, Kanban Principles, Project Schedules, Milestones (Project Management), Scheduling, Sprint Planning, Project Management, Project Planning, Workflow Management, Project Coordination, Work Breakdown Structure, Process Mapping, Agile Project Management, Accountability, Presentations, Stakeholder Management, Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Modeling, Database Design, Extract, Transform, Load, Data Warehousing, Data Pipelines, Business Intelligence, Data Mart, Database Management, Data Management, Process Optimization, Data Quality, Data Transformation, Performance Testing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: API Design, MLOps (Machine Learning Operations), Restful API, OAuth, Model Deployment, Model Evaluation, Transfer Learning, Vision Transformer (ViT), Artificial Intelligence and Machine Learning (AI/ML), Tensorflow, Stakeholder Communications, PyTorch (Machine Learning Library), Machine Learning Software, Applied Machine Learning, Artificial Intelligence, Solution Architecture, Machine Learning, Data Architecture, Machine Learning Algorithms, Data Science
Intermediate · Course · 3 - 6 Months

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Email Marketing, Email Automation, Microsoft Copilot, Marketing Automation, Data Ethics, Business Marketing, Generative AI, Search Engine Optimization, Content Marketing, Google Gemini, Prompt Patterns, Multimodal Prompts, ChatGPT, Search Engine Marketing, Digital Marketing, Deepseek, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Sales
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: NoSQL, Operational Databases, Database Administration, Databases, Database Architecture and Administration, Database Management, Data Migration, Google Cloud Platform, Scalability, Data Architecture, Performance Tuning, Site Reliability Engineering, Distributed Computing, Cloud Security, Capacity Management, IT Automation, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Eight Disciplines Problem Solving (8D), Root Cause Analysis, Team Building, Cross-Functional Collaboration, Corrective and Preventive Action (CAPA), Complex Problem Solving, Solution Design, Service Improvement, Quality Improvement, Process Validation, Continuous Improvement Process, Verification And Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Splunk, Role-Based Access Control (RBAC), Data Transformation, Data Analysis, Statistical Visualization, Infrastructure Architecture, Data Visualization Software, Statistical Analysis, Anomaly Detection, Exploratory Data Analysis, Configuration Management, Data Manipulation, Security Information and Event Management (SIEM), Scatter Plots, Distributed Computing, Authentications, Real Time Data, Software Installation, Query Languages
Beginner · Specialization · 3 - 6 Months