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: Application Security, Secure Coding, Vulnerability Assessments, Security Software, Security Testing, Cybersecurity, Collaborative Software, Threat Modeling, Debugging, Systems Design
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

EDUCBA
Skills you'll gain: Process Driven Development, Software Quality Assurance, Process Management, Software Development, Embedded Software, Verification And Validation, Software Development Life Cycle, Systems Development Life Cycle, Configuration Management, Requirements Analysis, Risk Management Framework, Change Requests, Quality Control, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, Application Development, Application Lifecycle Management, User Interface (UI) Design, Data Persistence, UI Components, Authorization (Computing), User Interface (UI), Data Storage, Database Management, File I/O
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Web Content Accessibility Guidelines, Education Software and Technology, Educational Materials, Learning Management Systems, Digital pedagogy, Community Development, Adult Education, Instructional Design, Motivational Skills, Relationship Building, Technology Strategies, Professional Development, Collaboration, Cultural Responsiveness, Constructive Feedback, Communication
Beginner · Course · 1 - 3 Months

Skills you'll gain: MongoDB, Node.JS, Angular, Restful API, API Design, NoSQL, Bootstrap (Front-End Framework), Database Development, Scalability, JavaScript Frameworks, Authentications, Query Languages, Web Applications, Authorization (Computing), JSON, Javascript and jQuery, Database Management, Distributed Computing, Web Development Tools, Web Design and Development
Beginner · Specialization · 3 - 6 Months

Arizona State University
Skills you'll gain: Sales Presentations, Graphic Design, Brainstorming, Verbal Communication Skills, Presentations, Communication, English Language, Marketing Materials, Advertising, Advertising Sales, Business Correspondence, Public Speaking, Persuasive Communication, Business Writing, Marketing Communications, Business Communication, Business Marketing, Communication Strategies, Marketing, Professional Networking
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Email Marketing, Content Strategy, Content Marketing, Content Performance Analysis, HubSpot CRM, Marketing Strategies, Web Content, Social Media Content, Paid media, Marketing, Digital Content, Content Creation, Target Audience, Marketing Analytics, Lead Generation, Newsletters, Digital Marketing, Customer Relationship Management, UI/UX Strategy, Marketing Automation
Beginner · Specialization · 1 - 3 Months

Erasmus University Rotterdam
Skills you'll gain: Microsoft Excel, Excel Formulas, Data Modeling, Verification And Validation, Financial Modeling, Business Modeling, Spreadsheet Software, Technical Documentation, Product Testing, Data Validation, Data Integrity, Data Management, Organizational Skills
Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Product Lifecycle Management, Embedded Systems, Manufacturing and Production, Robotic Process Automation, Manufacturing Processes, Control Systems, Computer-Aided Design, Programmable Logic Controllers, Automation, Internet Of Things, Production Process, Robotics, Digital Transformation, Engineering Analysis, C (Programming Language), Enterprise Resource Planning, Industrial Engineering, Supply Chain Management, Geometric Dimensioning And Tolerancing, Simulation and Simulation Software
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Responsive Web Design, jQuery, React.js, Javascript, Web Applications, JavaScript Frameworks, Web Development, Web Components, Web Design and Development, Web Development Tools, UI Components, User Interface and User Experience (UI/UX) Design, Web Content Accessibility Guidelines, User Interface (UI), Event-Driven Programming, Maintainability
Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Oracle SQL Developer, Oracle Databases, PL/SQL, Database Design, SQL, Database Architecture and Administration, Stored Procedure, Database Management, Data Management, Network Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks