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.

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

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, Computing Platforms, Algorithms
★ 4.4 (640) · Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Java Programming, Dataflow, Java, Distributed Computing, Programming Principles, Application Frameworks, Algorithms, Performance Tuning, Functional Design, Scalability
★ 4.6 (1.2K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Object Oriented Design, Software Development Tools, Computer Programming Tools, Code Reusability, Software Installation, Linux Commands
★ 4.8 (6) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Restful API, Application Deployment, Microservices, Docker (Software), Spring Boot, Spring Framework, Containerization, CI/CD, API Design, Application Programming Interface (API), Java Programming, Hibernate (Java), Back-End Web Development, Systems Architecture, Java, Software Architecture, Software Design, Authentications, Software Development, IntelliJ IDEA
★ 4 (17) · Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Virtual Machines, Package and Software Management, Memory Management
★ 4.7 (538) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Application Security, Java, Java Programming, Application Frameworks, Model View Controller, Security Controls, Development Environment, Web Applications, Application Programming Interface (API), Apache Maven, Authorization (Computing), Authentications, Configuration Management
★ 4.4 (38) · Intermediate · Course · 1 - 4 Weeks

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, Enterprise Architecture, Enterprise Application Management, Secure Coding, Software Design, System Monitoring, Security Controls, Software Architecture, Application Security, Application Frameworks, Web Applications, OS Process Management, Memory Management, Data Sharing
★ 3.7 (15) · Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Data Structures, Java, Cryptography, Software Engineering, Computer Programming, Algorithms, Encryption, Data Store, Program Development, Web Analytics and SEO, Data Mapping, Data Import/Export, Web Servers
★ 4.6 (3.2K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: GitHub Copilot, Software Development, Code Reusability
Intermediate · Course · 3 - 6 Months