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.

Edureka
Skills you'll gain: AI Security, Responsible AI, Data Ethics, LLM Application, Generative AI, Google Gemini, Artificial Intelligence, Cloud Security, Governance Risk Management and Compliance, Cyber Security Strategy, Security Strategy, Artificial Intelligence and Machine Learning (AI/ML), Computer Security Awareness Training, Network Security, Security Management, Cyber Attacks, Cyber Security Policies, Natural Language Processing, Risk Management, Supply Chain
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Logo Design, Graphic and Visual Design Software, Digital Design, Graphic Design, Design Software, Digital Publishing, Marketing, Creative Design, Data Sharing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Transfer Learning, Keras (Neural Network Library), Embeddings, Deep Learning, Image Analysis, Computer Vision, Natural Language Processing, Data Preprocessing
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: JUnit, Unit Testing, Software Testing, Development Testing, Java, Test Case, Integration Testing, Test Automation, Test Driven Development (TDD)
Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Marketing Strategies, Artificial Intelligence and Machine Learning (AI/ML), Strategic Marketing, Marketing Analytics, Artificial Intelligence, Generative AI, Agentic systems, Content Development and Management, Digital Marketing, Content Creation, Automation, Business Ethics, Customer experience improvement, Machine Learning, Natural Language Processing, Content Management, Creativity, Ethical Standards And Conduct, Interactive Data Visualization
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Management Reporting, Change Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Graphic and Visual Design, Content Creation, Graphic Design, Social Media Marketing, Advertising
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Microsoft Azure, Event-Driven Programming, Cloud Computing Architecture, Application Design, Application Programming Interface (API), Cloud Deployment, Solution Architecture, Microservices, Cloud Computing, Software Architecture, Virtual Machines, Cloud Infrastructure, Enterprise Architecture, Serverless Computing, Network Architecture, Hybrid Cloud Computing, Virtual Networking, Data Migration, Containerization
Advanced · Course · 1 - 3 Months

Skills you'll gain: Cloud Deployment, DevOps, CI/CD, Application Deployment, Development Environment, Cloud Applications, Continuous Deployment, Version Control, Amazon Elastic Compute Cloud, Continuous Integration, Real Time Data, Kibana, Query Languages, Data Modeling, Distributed Computing, SQL, Data Mapping, NoSQL, Relational Databases, Scalability
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Prompt Engineering, AI Workflows, Automation, AI Enablement, AI Orchestration, Performance Measurement, Responsible AI, Generative AI, Process Optimization, Scalability
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Open Shortest Path First (OSPF), Network Protocols
Beginner · Course · 1 - 3 Months