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: Apache Hadoop, Apache, Database Systems, NoSQL, Big Data, Database Management Systems, Databases, Shell Script, Data Storage, Data Storage Technologies, Database Design, Software Installation, Data Access, Data Modeling, System Configuration, Command-Line Interface, Scalability
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Unit Testing, Angular, Software Testing, Frontend Performance, Software Architecture, Software Design, Application Programming Interface (API), Restful API, Performance Tuning, Authentications, Authorization (Computing), Scalability, TypeScript
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Marketing Planning, Dashboard, Project Schedules, Marketing Strategies, Marketing Budgets, Content Performance Analysis, Competitive Analysis, Timelines, Project Planning, Marketing Analytics, Marketing Effectiveness, Strategic Marketing, Business Intelligence, Performance Analysis, Project Estimation, Data Integration, Cost Benefit Analysis, Budget Management, Market Research, Search Engine Marketing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Team Performance Management, Process Mapping, Team Building, Meeting Facilitation, Business Priorities, Teamwork, Collaboration, Cross-Functional Collaboration, Agile Project Management, Stakeholder Engagement, Performance Metric, Agile Methodology, Process Improvement, Organizational Change, Change Management, Leadership Development, Continuous Improvement Process, Communication Strategies, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Content Creation, Video Production, Performance Analysis, Social Media Content, Content Development and Management, Web Content, Video Editing, Performance Measurement, Post-Production, Performance Improvement, Graphic and Visual Design, Key Performance Indicators (KPIs), Workflow Management
Beginner · Course · 1 - 4 Weeks

Copenhagen Business School
Skills you'll gain: Business Strategy, Business Planning, Case Studies, Strategic Decision-Making, Strategic Thinking, Plan Execution, Goal Setting, Resource Management, Organizational Strategy, Peer Review, Competitive Analysis, Strategic Leadership, Innovation, Organizational Structure, Strategic Planning, Market Analysis, Culture Transformation, Change Management, Business Strategies, Organizational Change
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Robotic Process Automation, Email Automation, Transaction Processing, Business Process Automation, Scenario Testing, Automation, Data Integration, Debugging, Scalability, Image Analysis, Data Cleansing, Data Validation, Service Level
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Content Creation, Music
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Modeling, Database Design, Extract, Transform, Load, Data Warehousing, Data Pipelines, Business Intelligence, Data Mart, Database Management, Data Management, Process Optimization, Data Quality, Data Transformation, Performance Testing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Algorithms, Data Structures, Pseudocode, Computer Programming, Computational Thinking, Mathematical Theory & Analysis, Analysis, Analytical Skills
Intermediate · Course · 1 - 3 Months

O.P. Jindal Global University
Skills you'll gain: Correlation Analysis, Research Design, Psychology, Regression Analysis, Social Sciences, Mental Health Diseases and Disorders, Cognitive Behavioral Therapy, Social Skills, Statistical Methods, Interpersonal Communications, Statistical Hypothesis Testing, Scientific Methods, Research Methodologies, Analysis, Decision Making, Research, Physiology, Personal Development, Emotional Intelligence, Mental Health
Earn a degree
Degree · 1 - 4 Years

AI CERTs
Skills you'll gain: AI Personalization, Education Software and Technology, AI Enablement, Education and Training, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Learning Management Systems, Generative AI Agents, Adult Education, Educational Materials, Childhood Education and Development, Special Education, Driving engagement, Learning Strategies, Natural Language Processing
Intermediate · Course · 1 - 3 Months