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 London
Skills you'll gain: User Interface (UI), Interactive Design, Computer Graphics, Video Game Development, Mobile Development, Visualization (Computer Graphics), Web Applications, Game Design, Animations, Animation and Game Design, Musical Composition, Music, Multimedia, Graphics Software, Computer Programming, Image Analysis, Digital Signal Processing, Computer Programming Tools, Javascript
Mixed · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Unit Testing, Server Side, Javascript, Debugging, Back-End Web Development, File Systems, File I/O, Test Script Development, Software Testing, Development Testing, Web Applications, Event-Driven Programming, Code Reusability
Intermediate · Course · 1 - 3 Months

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

Coursera
Skills you'll gain: Javascript, Web Development, Web Development Tools, Scripting, Hypertext Markup Language (HTML), Programming Principles
Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Eclipse (Software), Embedded Software, Microarchitecture, Computer Architecture, Software Development, Software Development Tools, System Programming, Integrated Development Environments, Hardware Architecture, Embedded Systems, Verification And Validation, System Design and Implementation, Simulations, System Configuration, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, JSON, React.js, Jest (JavaScript Testing Framework), Hypertext Markup Language (HTML), Javascript, Bootstrap (Front-End Framework), Web Design, Web Development Tools, Web Design and Development, Cascading Style Sheets (CSS), Software Testing, Unit Testing, User Experience Design, Frontend Integration, Web Development, Mobile Development, JavaScript Frameworks, Test Case
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Microservices, Spring Boot, Software Architecture, API Gateway, Spring Framework, Cloud-Native Computing, Service Oriented Architecture, Load Balancing, Systems Architecture, Cloud Computing, Software Design Patterns, Scalability, Restful API, Service Management, Network Routing
Intermediate · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Node.JS, MongoDB, Angular, Full-Stack Web Development, JavaScript Frameworks, Restful API, Secure Coding, Server Side, Web Applications, Web Development, NoSQL, Front-End Web Development, Web Development Tools, Web Servers, Postman API Platform, Application Programming Interface (API), API Design, Javascript, Back-End Web Development, Event-Driven Programming
Beginner · Course · 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, File Management, Other Programming Languages, Development Environment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Test Automation, Test Script Development, Test Tools, Application Programming Interface (API), Restful API, Software Testing, Code Reusability, Configuration Management, Java Programming, Maintainability
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Java, Java Programming, Test Script Development, Test Automation, Software Development, Development Testing, Program Development, Application Design, Software Testing, Application Development, Programming Principles, Data Validation, User Interface (UI), Maintainability, Software Design, Debugging, Data Integrity
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Relational Databases, Database Application, Database Management, Database Development, SQL, Databases, Database Systems, MySQL, Database Management Systems, Database Software, Database Design, Transaction Processing, Stored Procedure, Data Access, Application Development, Java, Data Integrity, Performance Tuning
Build toward a degree
Intermediate · Course · 1 - 3 Months