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: Canva (Software), Graphic Design, Design, Graphic and Visual Design, Marketing Design, Graphic and Visual Design Software, Creative Design, Typography, Marketing Collateral, Graphical Tools, Design Elements And Principles, Marketing Materials
★ 4.6 (28) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Anthropic Claude, Application Programming Interface (API), LLM Application, JSON, AI Integrations, Generative AI Agents, Agentic systems, Scripting, Token Optimization, Artificial Intelligence, Automation, Development Environment
★ 4.1 (7) · Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, AI Personalization, Education Software and Technology, Generative AI Agents, Developing Training Materials, AI Enablement, Workforce Development, Artificial Intelligence and Machine Learning (AI/ML), Performance Analysis, Learning Management Systems, Generative AI, Instructional Design, AI literacy, HR Tech, Learning Styles, Content Creation, Learning Theory, Human Learning, Learning Strategies, Childhood Education and Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Digital Transformation, Business Transformation, Design Thinking, Technology Strategies, Business Process Reengineering, Data Strategy, Growth Strategies, Business Strategy, Organizational Change, Market Dynamics, Innovation, Emerging Technologies, Competitive Analysis, Leadership, Communication
★ 4.8 (11) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Key Performance Indicators (KPIs), Bookkeeping, Financial Forecasting, Revenue Forecasting, Budget Management, Financial Statement Analysis, Business Reporting, Performance Reporting, Financial Auditing, Capital Budgeting, Financial Controls, Financial Reporting, Operating Budget, Financial Analysis, Report Writing, Process Improvement, Banking Services, Financial Data
★ 4.2 (6) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Blockchain, Business Process Automation, Digital Transformation, Business Transformation, Automation, Emerging Technologies, Market Opportunities, Internet Of Things, Supply Chain Management, Data Integration, Distributed Computing, Systems Integration, Case Studies, Market Trend
★ 4.5 (338) · Beginner · Course · 1 - 3 Months

University of Leeds
Skills you'll gain: Logical Reasoning, Deductive Reasoning, Computational Logic, Computational Thinking, Algorithms, Artificial Intelligence, Cryptography, Graph Theory
★ 4.6 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Project Schedules, Scheduling, Project Planning, Project Management Software, Dependency Analysis, Diagram Design
★ 4.5 (79) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Power BI, Data Analysis Expressions (DAX), Data Modeling, Star Schema, Database Design, Data Security, Data Visualization Software, Spreadsheet Software, Performance Tuning, Data Access, Performance Improvement, Model Optimization, Data Manipulation
★ 4.9 (9) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Security Controls, HTML and CSS, UI Components, User Interface (UI) Design
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks
University of California, Irvine
Skills you'll gain: Blockchain, Cryptography, Data Integrity, Encryption, Cryptographic Protocols, FinTech, Transaction Processing, Data Structures, Verification And Validation
★ 4.8 (26) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, LLM Application, Large Language Modeling, AI Workflows, Retrieval-Augmented Generation, Embeddings, Generative AI, Tool Calling, Fine-tuning, Prompt Engineering, PyTorch (Machine Learning Library), Tensorflow, Semantic Web, Natural Language Processing, Artificial Intelligence, Application Development, Analytical Skills, Application Programming Interface (API), Supervised Learning, Computer Programming Tools
★ 3.4 (24) · Beginner · Specialization · 1 - 3 Months