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.

Cisco Learning and Certifications
Skills you'll gain: Network Architecture, Wireless Networks, Local Area Networks, Network Planning And Design, Network Infrastructure, Network Engineering, Network Switches, Network Security, Software-Defined Networking, Network Protocols, Networking Hardware, Identity and Access Management, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, Responsive Web Design, Cascading Style Sheets (CSS), jQuery, HTML and CSS, Hypertext Markup Language (HTML), Javascript and jQuery, Application Deployment, Web Design, Web Design and Development, Web Development, Semantic Web, Web Applications, UI Components, Front-End Web Development, Javascript, Data Validation, Payment Systems, Data Persistence
Mixed · Course · 1 - 4 Weeks
Madecraft
Skills you'll gain: Prioritization, Strategic Prioritization, Time Management, Action Oriented, Organizational Skills, Productivity, Calendar Management, Workflow Management, Goal Setting, Stress Management, Journals, Decision Making, Project Planning, Personal Development, Process Optimization, Self-Motivation, Operational Efficiency, Open Mindset, Administrative Support and Clerical Tasks, Professional Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Authentications, Node.JS, Back-End Web Development, API Design, Application Programming Interface (API), Secure Coding, Server Side, Software Architecture, Software Development, JSON, Maintainability, Middleware
Intermediate · Guided Project · Less Than 2 Hours

EDUCBA
★ 4.9 (20) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Generative AI Agents, Prompt Engineering, Agentic systems, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Artificial Intelligence, AI Security, Model Deployment, Large Language Modeling, Application Deployment, Development Environment, Security Testing, Responsible AI, Virtual Environment, Software Development, Python Programming, Software Testing, Microsoft Visual Studio, Computer Programming, Software Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dashboard Creation, Business Reporting, Performance Reporting, Analytics, Geospatial Mapping
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Business Planning, Diagram Design, Business Strategy, Strategic Thinking, Strategic Planning, User Accounts, Productivity Software, Collaborative Software, Graphic Design, Market Analysis
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Spring Framework, Server Side, Web Applications, Application Development, Application Frameworks, Configuration Management
Beginner · Course · 1 - 4 Weeks

★ 4.6 (16) · Mixed · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: AI Personalization, Fraud detection, Image Analysis, Artificial Intelligence and Machine Learning (AI/ML), Computer Vision, Amazon Web Services, Artificial Intelligence, Natural Language Processing, AI Enablement, AI Workflows, AI Integrations, Personalized Campaigns, Applied Machine Learning, Text Mining, Unstructured Data, Data Processing, Document Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Regression Analysis, Financial Forecasting, Model Evaluation, Statistical Reporting, Data Presentation, Technical Communication, Exploratory Data Analysis, Statistical Programming, R Programming, Statistical Modeling, Predictive Modeling, Statistical Software, Statistical Methods, Statistical Analysis, Verification And Validation, Plot (Graphics), Scatter Plots, Statistical Visualization, Reliability
Intermediate · Course · 1 - 4 Weeks