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.

Board Infinity
Skills you'll gain: Angular, HTML and CSS, JavaScript Frameworks, Hypertext Markup Language (HTML), Application Frameworks, Front-End Web Development, Javascript, Software Design Patterns, Java, Web Components, Code Reusability, Web Applications, Full-Stack Web Development, Cascading Style Sheets (CSS), Programming Principles, Web Design, Maintainability, Web Development, UI Components
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Java, Data Structures, File I/O, Java Programming, Data Access, Data Cleansing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Distributed Computing, Java Programming, Load Balancing, Middleware, Database Management Systems, NoSQL, Event-Driven Programming, Databases, Systems Architecture, Software Architecture, Computer Systems, Remote Access Systems, Microservices, Scalability, Service Management, Communication Systems
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Object Oriented Design, File I/O, Application Development, Data Access, Systems Development, Computer Programming, User Interface (UI), Application Design, UI Components, Program Development, Programming Principles, Database Application, Database Management, Databases, System Design and Implementation, Event-Driven Programming, Integrated Development Environments
Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Java Programming, Dataflow, Java, Distributed Computing, Programming Principles, Application Frameworks, Computer Programming, Algorithms, Performance Tuning, Theoretical Computer Science, Functional Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Eclipse (Software), Integrated Development Environments, Java Programming, Java, Object Oriented Programming (OOP), Development Environment, Programming Principles, Software Development Tools, Program Development, Software Installation, Debugging, Computer Programming, Computing Platforms, Command-Line Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: File I/O, Data Import/Export, Java Programming, Java, Programming Principles, Computer Programming, Data Structures, File Systems, File Management, Data Store, Computer Science
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Object Oriented Programming (OOP), Java, Object Oriented Design, Java Programming, Software Engineering, Programming Principles, Computer Programming, Software Design, Predictive Modeling, Algorithms, Data Structures, Data Import/Export, Markov Model, Performance Testing, File I/O, Debugging, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: jQuery, Javascript and jQuery, Javascript, Data Manipulation, HTML and CSS, Data Validation, UI Components, Scripting, Event-Driven Programming, Computational Thinking, JavaScript Frameworks, Web Design and Development, Web Applications, Programming Principles, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Program Development, Game Design, Frontend Performance, Event Monitoring
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: JUnit, Apache Maven, Spring Framework, Spring Boot, Model View Controller, Unit Testing, Frontend Integration, Microservices, Application Development, Redis, Restful API, YAML, Java, Java Programming, Application Frameworks, MongoDB, Application Deployment, NoSQL, Ajax, Data Persistence
Beginner · Specialization · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: Object Oriented Design, Java, Java Programming, Object Oriented Programming (OOP), Software Design Patterns, Maintainability, Software Design, Code Reusability, Functional Design, Data Management, Data Modeling
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Software Development Tools, Application Servers, Web Applications, Development Environment, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Development, Eclipse (Software), Program Development, Computer Programming, Object Oriented Design, Mobile Development, Programming Principles, Integrated Development Environments, UI Components, Event-Driven Programming, User Interface (UI), Virtual Machines
Intermediate · Specialization · 3 - 6 Months