Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Johns Hopkins University
Skills you'll gain: Regression Analysis, Statistical Modeling, R Programming, Linear Algebra, Data Science, Mathematical Modeling, Data Modeling, Statistics, Statistical Analysis, Applied Mathematics, General Mathematics, Derivatives
Advanced · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Business Analysis, Project Management, Risk Management, Project Planning, Data Visualization, Agile Project Management, Microsoft Excel, Cost Management, Business Systems Analysis, Project Management Office (PMO), Stakeholder Engagement, Excel Formulas, Scope Management, Pivot Tables And Charts, Dashboard, Business Analytics, Stakeholder Management, Business Requirements, Data Analysis, Data Validation
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: TypeScript, Programming Principles, Web Development Tools, Javascript, Web Language
Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, OpenAI API, Generative AI Agents, Agentic systems, AI Workflows, Large Language Modeling, Hugging Face, OpenAI, ChatGPT, Embeddings, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Application Development, Program Development, Retrieval-Augmented Generation, Artificial Intelligence, Data Processing
Intermediate · Specialization · 3 - 6 Months

Yonsei University
Skills you'll gain: Text Mining, Data Preprocessing, Natural Language Processing, Classification Algorithms, Data Analysis, Java, Unsupervised Learning, Machine Learning Methods, Supervised Learning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), CI/CD, Model View Controller, User Acceptance Testing (UAT), Continuous Integration, Cucumber (Software), Postman API Platform, Ansible, Software Testing, OAuth, Web Development Tools, Behavior-Driven Development, Application Performance Management, Prometheus (Software), Authentications, Test Driven Development (TDD), Package and Software Management, Cloud API, Javascript, Software Engineering
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Programming Principles, Computer Programming, Python Programming, Scripting, Computational Logic, Scripting Languages, Computer Science
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: NoSQL, Database Architecture and Administration, Cloud Applications, Database Management Systems, Data Store, Databases, PostgreSQL, Relational Databases, SQL, Cloud Deployment, Transaction Processing, Scalability, Application Deployment, JSON, Javascript
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Tidyverse (R Package), Rmarkdown, R Programming, Ggplot2, Data Import/Export, Data Visualization, Data Manipulation, Data Visualization Software, Data Analysis, Data Science, Data Storytelling, Statistical Analysis, Relational Databases, Data Cleansing, Data Transformation, Statistical Programming, Data Integration, Software Installation, Programming Principles, Communication
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Generative AI, Generative Adversarial Networks (GANs), Artificial Intelligence and Machine Learning (AI/ML), Responsible AI, Applied Machine Learning, Data Ethics, Transfer Learning, Federated Learning, Scalability, Machine Learning, Distributed Computing, Model Evaluation, MLOps (Machine Learning Operations), Microsoft Azure, Information Privacy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Web Analytics and SEO, Search Engine Optimization, Content Marketing, Web Analytics, Blogs, Search Engine Marketing, Content Creation, Marketing Strategy and Techniques, Digital Marketing, Growth Strategies, Content Strategy, Social Media Marketing, Market Research
Beginner · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Semantic Web, Query Languages, Data Management, Data Integration, Data Processing, JSON, Data Sharing, Data Mining, Interoperability, Extensible Markup Language (XML), Web Services, Data Modeling
Intermediate · Course · 1 - 4 Weeks