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: Search Engine Marketing, Search Engine Optimization, Web Analytics and SEO, Digital Marketing, Online Advertising, Return On Investment, Media Planning, Consumer Behaviour, Cross-Channel Marketing, Digital Advertising, Marketing Channel, Social Media Marketing, Marketing Strategies, Marketing Effectiveness, Paid media, Network Model, Business-To-Consumer, Marketing Analytics, Business Analysis
Beginner Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Innovation, Organizational Change, Change Management, Corporate Strategy, Business Transformation, Organizational Strategy, Business Leadership, Process Development, Growth Strategies, Organizational Structure, Product Development, Customer Analysis, Consumer Behaviour
Beginner Ā· Course Ā· 1 - 3 Months

28DIGITAL
Skills you'll gain: Applied Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Data Preprocessing, Feature Engineering, Dimensionality Reduction, Machine Learning, Model Evaluation, Predictive Modeling, Algorithms, Performance Tuning
Intermediate Ā· Course Ā· 1 - 3 Months
Skills you'll gain: Software Quality Assurance, Quality Assurance, Test Automation, Test Tools, Test Script Development, Acceptance Testing, Agile Software Development, Test Case, Software Testing, Continuous Integration, User Acceptance Testing (UAT), Agile Methodology, User Story, Sprint Retrospectives, Automation, Analysis, Collaboration
Intermediate Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Content Strategy, Content Development and Management, Web Content, No-Code Development, Marketing Collateral, Web Design, Driving engagement, Web Development, Digital Marketing
Beginner Ā· Guided Project Ā· Less Than 2 Hours

Skills you'll gain: Microsoft Office, Document Management, Design
Beginner Ā· Guided Project Ā· Less Than 2 Hours

Skills you'll gain: Selenium (Software), Test Tools, Test Automation, Software Testing, Test Script Development, Test Case, Regression Testing, Test Execution Engine, Javascript and jQuery, Browser Compatibility, Automation, Software Design Patterns, UI Components, Java
Intermediate Ā· Course Ā· 1 - 3 Months

The State University of New York
Skills you'll gain: Professional Development, Intercultural Competence, Trustworthiness, Cultural Diversity, Personal Development, Overcoming Obstacles, Education and Training, Collaboration, Goal Setting, Teamwork, Problem Solving, Adaptability, Higher Education, digital literacy, Communication, Time Management
Beginner Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Mobile Development, Cross Platform Development, .NET Framework, Authentications, User Interface (UI), Application Programming Interface (API), C# (Programming Language), Microsoft Visual Studio, Development Environment, Program Development, Data Access, Software Design Patterns
Intermediate Ā· Course Ā· 1 - 3 Months

Coursera
Skills you'll gain: Workflow Management, Dashboard, Project Management Software, Work Order, Process Design, Project Management
Beginner Ā· Guided Project Ā· Less Than 2 Hours

L&T EduTech
Skills you'll gain: Hazardous Waste Operations And Emergency Response Standard (HAZWOPER), Waste Minimization, Environmental Engineering, Sustainable Engineering, Environmental Regulations, Civil Engineering, Construction, Radiation Protection, Sustainable Technologies, Thermal Management, Land Management, Environmental Resource Management, Process Engineering, Environmental Laws, Chemical Engineering, Environmental Policy, Pollution Prevention, Transportation Operations, Energy and Utilities, Environmental Science
Intermediate Ā· Specialization Ā· 3 - 6 Months

Skills you'll gain: Network Monitoring, Routing Protocols, Software-Defined Networking, TCP/IP, Network Routing, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Network Performance Management, System Monitoring, Network Planning And Design, Disaster Recovery, Computer Networking, Network Architecture, Virtual Local Area Network (VLAN), Network Administration, Network Protocols, Border Gateway Protocol, Document Management, Software Installation
Intermediate Ā· Course Ā· 1 - 3 Months