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.

Board Infinity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Server Side, Application Development, Data Modeling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, Email Automation, Front-End Web Development, Web Design and Development, User Interface (UI), Web Design, Java, Server Side, Java Programming, MySQL, Program Development, Hypertext Markup Language (HTML), Web Development, Web Applications, Data Access, Back-End Web Development, Real Time Data, Development Testing, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Automation, Unit Testing, Software Testing, Verification And Validation, Test Case, Test Driven Development (TDD), Integration Testing, Debugging, Mockups
Mixed · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Django (Web Framework), Ajax, jQuery, Model View Controller, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), JSON, Linux Commands, Application Deployment, Cloud Deployment, Web Applications, Javascript, Web Servers, SQL, Debugging, Database Design, Database Management, Data Modeling, User Accounts, Object Oriented Programming (OOP)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java, Context Management, Web Applications, Server Side, Data Storage, Session Initiation Protocols, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Bootstrap (Front-End Framework), Debugging, UI Components, Front-End Web Development, Semantic Web, Hypertext Markup Language (HTML), Browser Compatibility, Web Content Accessibility Guidelines, Web Analytics and SEO, User Interface (UI), Development Testing, Data Validation, Javascript, Animations
Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Theoretical Computer Science, Data Structures, Computer Science, Computer Architecture, Algorithms, Programming Principles, Computational Logic, Java Programming, Computer Hardware, Scalability
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Generative AI Agents, AI Orchestration, LLM Application, OpenAI API, Java Programming, AI Workflows, Agentic systems, Generative AI, Prompt Patterns, Prompt Engineering, Large Language Modeling, Document Management, Secure Coding, Business Logic, Open Web Application Security Project (OWASP), Middleware, Plan Execution, Software Design Patterns, Persona Development
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: CI/CD, Jenkins, Docker (Software), Spring Boot, Configuration Management, Containerization, Scalability, Application Deployment, Cloud Deployment, Spring Framework, Amazon Elastic Compute Cloud, API Gateway, DevOps, JUnit, Java Programming, Java, Application Design, Unit Testing, Application Programming Interface (API), React.js
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Data Science, Web Applications, Python Programming, Programming Principles, Artificial Intelligence, Computer Programming, Scientific Visualization, Game Design
Beginner · Guided Project · Less Than 2 Hours

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Distributed Computing, Algorithms, Functional Design, Scalability, Java Programming, Other Programming Languages, Performance Tuning
Intermediate · Course · 1 - 4 Weeks