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.

Board Infinity
Skills you'll gain: iOS Development, Apple iOS, Apple Xcode, Swift Programming, Core Data (Software), Mobile Development, Secure Coding, Application Deployment, Scalability, User Interface (UI) Design, UI Components, Integrated Development Environments, Apple software proficiency, User Interface (UI), Back-End Web Development, Debugging, Data Persistence, Data Management, Performance Tuning, Frontend Performance
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Data Migration, Database Administration, NoSQL, Cloud Management, Database Development, Database Management, Cloud Applications, Database Architecture and Administration, Cloud Development, Operational Databases, Relational Databases, Dataflow, Terraform, Database Design, Query Languages, Data Pipelines, Distributed Computing, Performance Tuning, Application Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Behavior-Driven Development, Gherkin (Scripting Language), Software Testing, Unit Testing, Test Script Development, Test Case, Automation, Software Design Patterns, Maintainability, Python Programming, Code Reusability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Animation and Game Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Penetration Testing, Security Testing, Application Security, Event Monitoring, Exploit development, Cyber Security Assessment, Payment Systems, Continuous Monitoring, Blockchain, Incident Response, Vulnerability Scanning, Patch Management, Code Review, Incident Management, Development Testing, Authorization (Computing), Data Validation
★ 4.8 (30) · Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Cloud Security, Cloud Computing Architecture, Cloud Deployment, Cloud Management, Cloud Computing, Identity and Access Management, Cloud Infrastructure, Security Controls, CI/CD, Scalability, Data Security, Cloud Solutions, Network Troubleshooting, Disaster Recovery, Infrastructure as Code (IaC), Vulnerability Assessments, Key Management, Network Security, Incident Response, Solution Design
★ 5 (7) · Beginner · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Salesforce Development, Salesforce, Web Components, Application Design, Application Development, No-Code Development, UI Components, Cloud Applications, User Interface (UI), Customer Relationship Management (CRM) Software
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Interviewing Skills, Search Engine Optimization, Generative Engine Optimization (GEO), Oral Expression, Marketing, Decision Making, Web Analytics and SEO, Digital Marketing, Keyword Research, Marketing Analytics, Verbal Communication Skills, Strategic Decision-Making, Data-Driven Decision-Making, Performance Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Presentations, Photo Editing, Social Media Content, Graphic and Visual Design Software, Graphic Design, Photo/Video Production and Technology, Creative Design, Content Creation, Visual Storytelling, Marketing Collateral, Design, Visual Design, Graphic and Visual Design, Video Editing, Brochures, Collaborative Software, Design Elements And Principles, Branding, Marketing Materials
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), UI Components, Interactive Design, HTML and CSS, User Interface (UI), Responsive Web Design, Web Design, Code Reusability, Animations, Web Development
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: PyTorch (Machine Learning Library), Convolutional Neural Networks, Deep Learning, Supervised Learning, Model Optimization, Artificial Neural Networks, Model Training, Model Evaluation, Decision Tree Learning, Machine Learning Algorithms, Machine Learning
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Loss Prevention, Fraud detection, Asset Protection, Financial Controls, Regulatory Documents, Auditing, Payment Processing and Collection, Accounting, Internal Controls, Transaction Processing, Compliance Auditing, Authorization (Computing), Payment Processing, Verification And Validation, Document Control
Beginner · Course · 1 - 4 Weeks