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 San Diego
Skills you'll gain: Event-Driven Programming, Interactive Data Visualization, Java, Java Programming, Object Oriented Programming (OOP), User Interface (UI), Object Oriented Design, Computer Programming, UI Components, User Interface (UI) Design, Algorithms, Software Engineering, Geospatial Mapping, Software Documentation
★ 4.7 (5.8K) · Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, GitHub Copilot, Vibe coding, Computer Programming, IntelliJ IDEA, Code Reusability, Data Structures, Programming Principles, Program Development, Development Environment, Integrated Development Environments, Spring Boot, Computer Programming Tools, Code Review, Software Installation, Application Deployment, Back-End Web Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Apache Maven, File I/O, Build Tools, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, JUnit, Code Reusability, Software Documentation, Programming Principles, Data Structures, File Systems, Computer Programming, Java, Data Validation, Network Protocols, Unit Testing, Computer Science
★ 4.5 (200) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, Restful API, Open Web Application Security Project (OWASP), Java Programming, API Design, API Gateway, Postman API Platform, Software Documentation, Software Testing, Application Programming Interface (API), Java, Performance Testing, Performance Tuning, Web Frameworks, Application Deployment, Application Security, Web Services, Software Versioning, Spring Boot, Computer Programming
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Spring Framework, Model View Controller, Java Platform Enterprise Edition (J2EE), Application Performance Management, Software Design Patterns, Java Programming, Java, Software Design, Software Architecture, Application Security, Programming Principles, Authorization (Computing), Authentications, Web Applications, Maintainability, Scalability, Application Development, Extensible Markup Language (XML), Application Design, Data Validation
★ 3.7 (15) · Intermediate · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Spring Boot, Application Development, Redis, Java, Application Design, Web Development, Web Applications, Development Testing, Databases, Data Integration, Database Application, Application Security, Unit Testing, Relational Databases, Data Access, Integration Testing, Hypertext Markup Language (HTML)
★ 4.4 (49) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Java, Integrated Development Environments, Mobile Development, Computer Programming, Programming Principles
★ 4.4 (180) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Data Structures, Java Programming, Algorithms, Software Testing, Java, Test Automation, Test Case, Software Development, Scalability
★ 4 (64) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Eclipse (Software), Java Programming, Object Oriented Programming (OOP), Software Development Tools, Java, Computer Programming Tools, Object Oriented Design, Integrated Development Environments, Development Environment, Computer Programming, Programming Principles, Virtual Machines, Algorithms
★ 4.4 (640) · Beginner · Course · 1 - 4 Weeks

Rocketseat
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Java Programming
★ 4.3 (163) · Advanced · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Object Oriented Design, File Management, Software Design, Software Development, Data Management, System Design and Implementation, Persistence, Technical Design, Operations, Design
★ 5 (13) · Intermediate · Course · 1 - 4 Weeks