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 Maryland, College Park
Skills you'll gain: Pay Per Click Advertising, Marketing Analytics, Search Engine Optimization, Analytics, Big Data, Keyword Research, Google Analytics, Digital Marketing, Search Engine Marketing, Paid media, Web Analytics, Online Advertising, Digital Advertising, A/B Testing, Marketing Automation, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning, Customer experience improvement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Search Engine Optimization, E-Commerce, Order Management, Product Improvement, Real Time Data, User Feedback, Payment Processing and Collection, Promotional Strategies
Advanced · Course · 1 - 3 Months

Skills you'll gain: Shiny (R Package), User Interface (UI), Data Visualization Software, Interactive Data Visualization, Application Deployment, Web Applications, Front-End Web Development, Data Analysis, Back-End Web Development, Spatial Data Analysis, Web Development, Full-Stack Web Development, Python Programming, Application Development, Development Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Oracle Databases, Operational Databases, Database Architecture and Administration, Database Management, Patch Management, Multi-Tenant Cloud Environments, Data Maintenance, Performance Tuning, Server Administration, Load Balancing, Transaction Processing, System Configuration, Application Performance Management, Verification And Validation
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Vulnerability Management, Encryption
Advanced · Course · 1 - 3 Months

Skills you'll gain: Integration Testing, Middleware, Data Integration, Business Process Automation, Software Installation, Property Management Systems, System Configuration, Application Development, Development Testing
Mixed · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Multi-Factor Authentication, Role-Based Access Control (RBAC), Authentications, Azure Active Directory, Zero Trust Network Access, Identity and Access Management, User Provisioning, Security Controls, Cloud Security, User Accounts
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Social Media Campaigns, Advertising, Digital Advertising, Social Media Marketing, Marketing, Driving engagement, Social Media, Project Implementation, Business Process Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: 3D Modeling, Visualization (Computer Graphics), Simulations, Animations, Computer Graphics, Data Pipelines, Debugging
Mixed · Course · 1 - 3 Months

SAE Institute México
Skills you'll gain: Video Game Development, Unity Engine, Game Design, Ideation, User Interface (UI), User Interface (UI) Design, 3D Assets, Animations, Computer Programming, Scripting
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Multiprotocol Label Switching, Virtual Private Networks (VPN), Routing Protocols, Border Gateway Protocol, Open Shortest Path First (OSPF), Network Troubleshooting, Network Routers, Wide Area Networks, Network Routing, Network Monitoring, Command-Line Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Vulnerability Assessments, Security Controls, Blockchain, Security Testing, Network Infrastructure, Network Security, Cryptography, Malware Protection, Scripting, Transaction Processing, Network Protocols, Encryption
Intermediate · Course · 1 - 4 Weeks