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 Michigan
Skills you'll gain: Performance Appraisal, Talent Management, Recruitment Strategies, Workforce Development, Employee Training, Recruitment, Constructive Feedback, Succession Planning, Human Resource Strategy, Talent Pipelining, Employee Performance Management, Performance Management, Leadership Development, Talent Acquisition, Employee Engagement, Organizational Structure, Branding
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Case Studies, Collaboration, Professional Networking, Leadership and Management, Professionalism, Teamwork, Team Leadership, Professional Development, Leadership, Business Leadership, Relationship Building, Branding, Personal Attributes, Goal Setting, Mentorship, Adaptability
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Frontend Integration, Application Programming Interface (API), Secure Coding, Cloud Deployment, JavaScript Frameworks, Frontend Performance, Database Development, Maintainability, Node.JS, Server Side, Authentications, Application Performance Management
Beginner · Specialization · 1 - 3 Months

Illinois Tech
Skills you'll gain: Model Evaluation, Statistical Analysis, Data Visualization, Data Analysis, Exploratory Data Analysis, Data Cleansing, Analytics, Machine Learning, Data Preprocessing, Regression Analysis, Data Mining, Python Programming, Scikit Learn (Machine Learning Library), Unsupervised Learning, Classification And Regression Tree (CART), Decision Tree Learning, Logistic Regression
Build toward a degree
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Business Process Improvement, Process Optimization, Quality Assurance, Digital Transformation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: PHP (Scripting Language), File I/O, Web Applications, Usability, Information Architecture, Responsive Web Design, Hypertext Markup Language (HTML), Front-End Web Development, MySQL, Web Design and Development, User Experience Design, Browser Compatibility, User Interface (UI), HTML and CSS, Verification And Validation, User Interface (UI) Design, Server Side, Semantic Web, Back-End Web Development, Javascript
Beginner · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: HubSpot CRM, Customer Relationship Management, Marketing Automation, Performance marketing, Online Advertising, Keyword Research, Promotional Strategies, Social Media Marketing, Advertising Campaigns, Marketing Strategies, Customer Acquisition Management, Product Promotion, Search Engine Optimization, Performance Metric, Customer Engagement, Advertising, Key Performance Indicators (KPIs), Competitive Analysis, Business Metrics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, Data Visualization Software, Data Visualization, Interactive Data Visualization, Histogram, Data Transformation, Data Processing, Apache Kafka, JSON, MySQL, SQL
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Management, Data Centers, Security Management, Risk Management Framework, Identity and Access Management, Data Storage Technologies
Advanced · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Data Sharing, Interoperability, Information Architecture, Technical Documentation, Data Management, Data Validation, Document Management
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Search Engine Marketing, Research, Competitive Intelligence, Digital Marketing, Content Creation, Content Performance Analysis, Data-Driven Decision-Making, ChatGPT, Content Strategy, Content Marketing, Marketing Analytics, Digital Content, Web Analytics, AI Enablement, Generative AI, Content Management, Analytics
Intermediate · Specialization · 1 - 3 Months