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.

Columbia University
Skills you'll gain: Statistical Inference, Regression Analysis, Statistical Methods, Sampling (Statistics), Statistical Modeling, Machine Learning, Experimentation, Data Collection, Probability & Statistics, Research Design, Econometrics, Program Evaluation, Logistic Regression
Advanced · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Browser Compatibility, Java Programming, Software Testing, Javascript, Eclipse (Software), Apache Maven, Development Environment, Object Oriented Programming (OOP), Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Software Installation, System Configuration
Intermediate · Course · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Public Cloud, Cloud Computing Architecture, Cloud Computing, Application Programming Interface (API), Cloud Services, Scalability, Cloud Platforms, Amazon Web Services, Infrastructure As A Service (IaaS), Technical Services, Systems Administration, Solution Architecture, Security Engineering
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Telehealth, Health Technology, Health Systems, Health Care, Medical Billing, Clinic Management Systems, Electronic Medical Record System, Health Care Procedure and Regulation, Health Care Administration, Telecommunications, Value-Based Care, Regulatory Compliance, Patient Communication, Patient-centered Care, Communication Systems, Health Policy, Digital Transformation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Analysis, Network Security, Cyber Operations, Intrusion Detection and Prevention, MITRE ATT&CK Framework, Cybersecurity, Threat Detection, Network Monitoring, Penetration Testing, Anomaly Detection, Brute-force attacks, Scripting, Authentications, Vulnerability Assessments, Python Programming, Data Access, System Monitoring, Systems Analysis, Automation
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Graphical Tools, Web Content, Design, Creative Design, Graphic Design, Marketing Design, Event Management
Beginner · Guided Project · Less Than 2 Hours

Cisco Learning and Certifications
Skills you'll gain: Ansible, YAML, Network Architecture, Network Administration, Infrastructure as Code (IaC), General Networking, Automation, Technical Documentation, Configuration Management, JSON, Python Programming
Intermediate · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Geometry, Algorithms, Computer Graphics, Data Structures, Graph Theory, Spatial Data Analysis, Computational Thinking, Geographic Information Systems, Theoretical Computer Science, Spatial Analysis
Intermediate · Course · 1 - 4 Weeks

IIMA - IIM Ahmedabad
Skills you'll gain: Diversity and Inclusion, Stakeholder Management, Organizational Structure, Organizational Leadership, Organizational Effectiveness, Organizational Strategy, Organizational Change, Workforce Planning, Process Design, Ethical Standards And Conduct, Workforce Management, Innovation, Change Management, Employee Engagement, Culture
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: C++ (Programming Language), Data Structures, File I/O, Data Store, Data Cleansing, Data Mapping, Data Integrity
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: JUnit, Spring Framework, Spring Boot, Java, Apache Maven, Hibernate (Java), Unit Testing, Gradle, Microservices, Application Programming Interface (API), Google Cloud Platform, Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Cloud Deployment, OAuth, YAML, Restful API, Load Balancing, Configuration Management
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Image Analysis, Scalability, Digital Signal Processing, C and C++, Distributed Computing, Computer Graphics, Data Processing, Performance Tuning, Hardware Architecture, Algorithms
Intermediate · Course · 1 - 3 Months