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.

Skills you'll gain: ASP.NET, .NET Framework, Restful API, Application Programming Interface (API), API Design, C# (Programming Language), Back-End Web Development, Databases, Data Persistence, Data Validation, Data Mapping, Data Modeling
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Storytelling, Canva (Software), Presentations, Visual Design, Case Studies, Content Creation, Digital Design, Portfolio Management, Layout Design, Project Documentation, Graphic and Visual Design, Planning, Strategic Planning, Critical Thinking and Problem Solving, Goal Setting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Swift Programming, UI Components, Apple iOS, Mobile Development, Apple Xcode, Responsive Web Design, User Interface (UI) Design, User Interface (UI), Application Design, Algorithms, Animations, Software Design Patterns, Color Theory, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Photo Editing, Adobe Photoshop, File Management, Image Quality, Photography, Data Import/Export, Data Storage
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Database Management, Apache Hadoop, Query Languages, Big Data, Databases, SQL, Data Access, Distributed Computing, Performance Tuning, Data Processing, Data Integrity, Authorization (Computing), Data Storage Technologies, File Systems, Algorithms
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Scrum (Software Development), Agile Methodology, Systems Engineering, Risk Management, Lean Methodologies, Software Development Methodologies, Scalability, Sprint Retrospectives, Agile Project Management, Systems Development Life Cycle, Team Management, Waterfall Methodology, Sprint Planning, Backlogs
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Brute-force attacks, Cryptography, Encryption, Python Programming, Scripting, User Interface (UI), Statistical Programming, UI Components, Application Development
Mixed · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Node.JS, File I/O, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Transformation, Customer Analysis, Data Analysis, Customer Data Management, MongoDB, Data Processing, Data Validation, Financial Data, Data Import/Export, Data Pipelines, Data Integration, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Key Management, Encryption, Amazon CloudWatch, Amazon Web Services, AWS Identity and Access Management (IAM), Cloud Security, Event Monitoring, Continuous Monitoring, Security Information and Event Management (SIEM), Data Security, Advanced Encryption Standard (AES), System Monitoring, Amazon S3, Incident Response
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Active Listening, Interpersonal Communications, Constructive Feedback, Communication Strategies, Empathy, Diversity and Inclusion, Conflict Management, Diversity Awareness, Communication, Emotional Intelligence, Teamwork, Expectation Management, Collaboration, Performance Review, Relationship Building
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Preprocessing, Data Transformation, Feature Engineering, Pandas (Python Package), Text Mining, Predictive Modeling, Scikit Learn (Machine Learning Library), Python Programming, Data Analysis, Machine Learning
Intermediate · Course · 1 - 4 Weeks