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.

University of California San Diego
Skills you'll gain: Big Data, Apache Hadoop, Scalability, Data Processing, Data Science, Distributed Computing, Unstructured Data, Data Analysis, Real Time Data, Data Quality, Data Storage
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Django (Web Framework), Restful API, AI Personalization, Payment Processing, Content Management Systems, Blogs, API Design, Application Deployment, Order Management, Content Management, Payment Systems, Payment Processing and Collection, Learning Management Systems, User Accounts, Data Sharing, Web Applications, Web Frameworks, Python Programming, Ajax, Javascript
Beginner · Specialization · 3 - 6 Months
University of London
Skills you'll gain: Computer Science, Debugging, Development Environment, Computer Systems, Web Applications, Arithmetic, Computer Literacy, General Networking, Javascript, Network Security, Computer Networking, Application Security, Computational Thinking, Visualization (Computer Graphics), Program Development, Applied Mathematics, Computer Programming, General Mathematics, Numerical Analysis, Problem Solving
Build toward a degree
Beginner · Specialization · 1 - 3 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Object Oriented Design, Object Oriented Programming (OOP), Functional Design, Computer Programming, Data Structures, Code Reusability, Computational Logic
Intermediate · Course · 1 - 3 Months
Madecraft
Beginner · Specialization · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Intellectual Property, Branding, Brand Marketing, Brand Strategy, Legal Strategy, Brand Management, Asset Protection, Promotional Strategies, Case Law, Regulation and Legal Compliance, Packaging and Labeling, Legal Risk, Case Studies, Asset Management, Law, Regulation, and Compliance, Marketing, Innovation, Strategic Thinking, Business Strategy, Planning
Intermediate · Specialization · 3 - 6 Months

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Prompt Engineering Tools, AI Workflows, Vibe coding, Generative AI Agents, Software Development Tools, Artificial Intelligence, Generative AI, AI Personalization, Google Workspace, Code Review, Software Development, Responsible AI, Application Deployment, Design Software, Front-End Web Development, Software Engineering, React.js, Web Development, Javascript
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Workspace, Gmail, Google Gemini, Email Automation, System Configuration, Document Management, Service Management, Collaborative Software, Scripting, File Management, No-Code Development
Beginner · Course · 1 - 4 Weeks
University of California San Diego
Skills you'll gain: Design Research, Interaction Design, User Experience Design, Statistical Analysis, Usability, Experience Design, UI/UX Research, Ideation, User Interface (UI), UI/UX Strategy, Experimentation, Interactive Design, User Interface and User Experience (UI/UX) Design, Human Computer Interaction, A/B Testing, Human Factors, Collaborative Software, Telecommuting, R Programming, Storyboarding
Intermediate · Specialization · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: Bayesian Statistics, Time Series Analysis and Forecasting, Statistical Inference, Statistical Methods, R Programming, Forecasting, Statistical Programming, Probability & Statistics, Statistical Modeling, Technical Communication, Data Presentation, Probability, Statistics, Statistical Analysis, Statistical Reporting, Statistical Software, Probability Distribution, Data Analysis, Markov Model, Data Science
Intermediate · Specialization · 3 - 6 Months

Meta
Skills you'll gain: Jest (JavaScript Testing Framework), React.js, Web Development Tools, JavaScript Frameworks, Code Reusability, Application Programming Interface (API), Unit Testing, UI Components, Front-End Web Development, Software Design Patterns, Javascript, Development Environment, Context Management
Intermediate · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Analytical Skills, Science and Research, Sampling (Statistics), Statistical Hypothesis Testing, Data Literacy, Statistical Analysis, R (Software), Data Analysis, Statistical Software, Statistical Programming, Probability & Statistics, Statistical Methods, R Programming, Statistics, Public Health, Statistical Inference, Descriptive Statistics, Probability Distribution, Data Import/Export
Beginner · Course · 1 - 4 Weeks