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.

Skills you'll gain: Frontend Integration, Restful API, Spring Boot, Full-Stack Web Development, React.js, IntelliJ IDEA, Spring Framework, Object-Relational Mapping, Web Services, JavaScript Frameworks, Front-End Web Development, YAML, Web Applications, Back-End Web Development, Data Access, Database Application, User Interface (UI), Context Management, Application Programming Interface (API), Databases
Intermediate · Specialization · 1 - 4 Weeks

Packt
Skills you'll gain: Spring Boot, Hibernate (Java), Spring Framework, Web Applications, Application Development, Web Development, Program Development, Restful API, Application Frameworks, Secure Coding, Bootstrap (Front-End Framework), Development Environment, Object-Relational Mapping, Model View Controller, UI Components, Software Development Tools, Authentications, User Interface (UI), Databases
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Git (Version Control System), GitHub, Version Control, Integrated Development Environments, Software Versioning, Software Configuration Management, Collaborative Software, IntelliJ IDEA, Software Development Tools, Eclipse (Software), Code Review, CI/CD, Microsoft Visual Studio, Development Environment, Continuous Integration, Software Development, Software Installation, Devops Tools, File Management, Linux
Beginner · Specialization · 1 - 3 Months

Accenture
Skills you'll gain: Data Literacy, Computer Literacy, Microsoft Excel, Data Security, digital literacy, Telecommuting, Data Analysis, Data-Driven Decision-Making, Excel Formulas, Programming Principles, Spreadsheet Software, Web Language, Emerging Technologies, Data Collection, Computer Security Awareness Training, Digital Communications, Scripting Languages, Web Development, Javascript, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Software Design, Object Oriented Programming (OOP), Apache Maven, Object Oriented Design, Integrated Development Environments, Software Development Tools, Build Tools, Version Control, Git (Version Control System), GitHub, Data Import/Export, Development Environment, Program Development, Java, Kotlin, Debugging, Java Programming, Scripting Languages, Software Installation
Intermediate · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), C and C++, Programming Principles, Data Management, Memory Management, Algorithms, Computer Programming, File I/O, Program Development, File Management, Other Programming Languages, Development Environment, Computational Logic
Beginner · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Database Theory, Database Development, Query Languages, Development Testing, Hibernate (Java), Performance Tuning, Software Testing, Object-Relational Mapping, Frontend Integration
Build toward a degree
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Java, Java Programming, Performance Tuning, Data Structures, Software Engineering, Tree Maps, Scalability, Algorithms, Benchmarking, Theoretical Computer Science
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Web Development Tools, Development Environment, Frontend Integration, Software Development Tools, Program Development, Integrated Development Environments, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Event-Driven Programming, Development Testing, Javascript, Network Architecture
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Secure Coding, Application Security, Exploitation techniques, Web Applications, Javascript, Web Development, Node.JS, Java Programming
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Web Development, Database Design, Relational Databases, Web Applications, Web Development Tools, Databases, Web Design and Development, Full-Stack Web Development, Database Systems, Database Development, Application Deployment, Server Side, HTML and CSS, Cloud Deployment, Back-End Web Development, Scripting Languages, Application Development, Cloud Applications, Javascript, Cloud Computing
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Database Application, Database Development, Full-Stack Web Development, Web Applications, Model View Controller, Authentications, Authorization (Computing), Business Logic, Dashboard Creation
Beginner · Course · 1 - 4 Weeks