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.

LearnQuest
Skills you'll gain: Apache Maven, Spring Framework, Microservices, Spring Boot, Java, Java Programming, Back-End Web Development, Software Architecture, Server Side, Load Balancing, Cloud Development, Restful API, Systems Architecture, Web Applications, Scalability
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Data Structures, Spring Boot, Restful API, Model View Controller, Spring Framework, Web Services, Java Programming, Java, Back-End Web Development, Authentications, Programming Principles, Authorization (Computing), Software Architecture, Algorithms, Object Oriented Programming (OOP)
Advanced · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Spring Framework, Spring Boot, Application Development, Redis, Java, Application Design, Hibernate (Java), JUnit, Web Development, Database Development, Application Security, Performance Tuning, Command-Line Interface
Mixed · Course · 1 - 3 Months

Universidad de Palermo
Skills you'll gain: Eclipse (Software), Java, Java Programming, Object Oriented Programming (OOP), Integrated Development Environments, Data Structures, Programming Principles, Algorithms, Computer Programming, Development Environment, Debugging, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Database Design, Continuous Integration, Restful API, User Requirements Documents, Docker (Software), Model View Controller, Front-End Web Development, Databases, User Story, CI/CD, Java, Java Programming, Hibernate (Java), Database Application, HTML and CSS, Full-Stack Web Development, Spring Boot, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Software Design Documents
Advanced · Course · 1 - 3 Months

Skills you'll gain: Software Development Life Cycle, Istio, Software Architecture, Node.JS, Application Deployment, Restful API, Kubernetes, React Redux, Database Design, CI/CD, Cloud-Native Computing, Responsive Web Design, NoSQL, OpenShift, Git (Version Control System), Cloud Applications, Ajax, Javascript, Azure DevOps, Engineering Software
Beginner · Professional Certificate · 3 - 6 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java, Performance Testing, Computer Programming, Java Programming, Theoretical Computer Science, Object Oriented Programming (OOP)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Object Oriented Design, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Prompt Engineering, ChatGPT, Prompt Patterns, Generative AI Agents, LLM Application, Productivity, OpenAI, Java, Agentic systems, Generative AI, Artificial Intelligence, Large Language Modeling, JUnit, Artificial Intelligence and Machine Learning (AI/ML), Creative Thinking, Creative Problem-Solving, Document Management, Secure Coding, Business Logic, Problem Solving
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, CI/CD, Spring Boot, Restful API, Java Programming, Integration Testing, Continuous Integration, Database Development, Application Security, Java, Containerization, SQL, Databases, Application Frameworks, NoSQL, Docker (Software), Kubernetes, Test Driven Development (TDD), Object Oriented Design
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Prompt Patterns, ChatGPT, Generative AI, Large Language Modeling, Responsible AI, Restful API, Application Deployment, Artificial Intelligence, Software Development Tools, Software Testing, Test Automation, Software Development, DevSecOps, Application Security, CI/CD, Application Programming Interface (API), AI Product Strategy, Artificial Intelligence and Machine Learning (AI/ML), Java Programming
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, JUnit, Java, Software Documentation, Data Structures, Computer Programming, Restful API, Integrated Development Environments, File Management, Programming Principles, Data Validation, Package and Software Management, Network Protocols, Unit Testing, Computer Science
Beginner · Specialization · 3 - 6 Months