Java courses can help you learn object-oriented programming, data structures, exception handling, and multithreading concepts. 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, Irvine
Skills you'll gain: Data Management, File I/O, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Applications, HTML and CSS, Front-End Web Development, Web Design and Development, Javascript, Application Design, Application Development, Data Validation, UI Components, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Scalability, Software Design Patterns, Node.JS, Distributed Computing, Dataflow, Event-Driven Programming, Object Oriented Design, Software Design, Load Balancing, Software Architecture, Performance Tuning, Real Time Data, Systems Architecture, File I/O, Redis, Object Oriented Programming (OOP), Systems Design, Application Performance Management, Javascript, Maintainability
Intermediate · Specialization · 3 - 6 Months

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

Skills you'll gain: TypeScript, Restful API, API Design, Full-Stack Web Development, PostgreSQL, Application Programming Interface (API), Object-Relational Mapping, Secure Coding, Web Applications, JavaScript Frameworks, SQL, Front-End Web Development, React.js, Database Systems, Relational Databases, Database Management, Development Environment, Back-End Web Development, Javascript, Artificial Intelligence
Beginner · Course · 3 - 6 Months

Skills you'll gain: Event-Driven Programming, Web Applications, Application Development, Web Design and Development, Javascript, Hypertext Markup Language (HTML), Front-End Web Development, Transaction Processing, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Object Oriented Programming (OOP), Eclipse (Software), Java, Java Programming, JUnit, HTML and CSS, Test Automation, Software Testing, Test Script Development, Integrated Development Environments, Test Data, Test Tools, Browser Compatibility, Computer Programming, Web Development, Programming Principles, Test Case, Software Design, Development Environment
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Leaflet (Software), Global Positioning Systems, Geospatial Mapping, Internet Of Things, Systems Integration, Frontend Performance, Javascript, Network Troubleshooting
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Apache Maven, Build Tools, Dependency Analysis, Integrated Development Environments, Jenkins, Software Configuration Management, JUnit, Software Installation, Code Coverage, Software Versioning, Code Review, Shell Script, Project Management, Software Documentation, Automation, Systems Integration, Debugging
Beginner · Course · 1 - 3 Months

Universitat Politècnica de València
Skills you'll gain: Computational Thinking, Computer Programming, Programming Principles, Algorithms, Web Applications, Object Oriented Programming (OOP), Information Technology, Information Systems, Data Structures, Javascript, SQL, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Databases
Beginner · Course · 1 - 3 Months

Skills you'll gain: React Redux, React.js, UI Components, User Interface (UI), Front-End Web Development, Scalability, Web Applications, Development Environment, Web Development Tools, Javascript, Data Management, Debugging
Beginner · Course · 1 - 4 Weeks

JetBrains
Skills you'll gain: Video Game Development, Generative AI Agents, Prompt Engineering, Game Design, Code Review, 3D Assets, Animation and Game Design, 3D Modeling, Integrated Development Environments, Artificial Intelligence, Generative AI, Project Planning, Javascript, Software Development, Product Development, Web Development, Product Design, Animations, Visual Design, Interactive Data Visualization
Beginner · Course · 1 - 4 Weeks