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.

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

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
★ 4.9 (20) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java Programming, Object-Relational Mapping, Java, Application Servers, Middleware, Application Deployment, Data Persistence, Event-Driven Programming, Enterprise Application Management, Server Side, Code Reusability, Context Management, Transaction Processing, Business Logic, Query Languages
★ 4.8 (59) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Java, Application Development, Java Programming, Software Engineering, Microsoft Visual Studio, Data Structures, Programming Principles, Algorithms
★ 4.4 (10) · Intermediate · Guided Project · Less Than 2 Hours

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
★ 4.6 (45) · Beginner · Course · 1 - 4 Weeks

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
★ 4.4 (12) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java, Software Development Tools, Application Servers, Web Applications, Development Environment, Java Programming, Java Platform Enterprise Edition (J2EE), Application Development, Program Development, Mobile Development, Computer Programming, UI Components, Event-Driven Programming, User Interface (UI), Command-Line Interface
★ 4.4 (61) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Spring Framework, Java Programming, Java, File I/O, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Code Reusability, Data Structures, File Management
★ 4.7 (222) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Data Persistence, Software Design Patterns, Maintainability, Memory Management, Programming Principles, OS Process Management, Code Reusability, Functional Design, Computer Programming, Oracle Databases, File Systems, API Design, Data Structures, Software Design, Dependency Analysis, Data Management
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Restful API, Object Oriented Programming (OOP), Object Oriented Design, Java Programming, Spring Framework, Java, Spring Boot, API Design, Application Programming Interface (API), Hibernate (Java), Data Validation, Development Testing, Verification And Validation, Authentications, Model View Controller, Back-End Web Development, Computer Programming, Code Reusability, Object-Relational Mapping, Server Side
Intermediate · Specialization · 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, Scripting Languages, 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
★ 4.7 (1.1K) · Beginner · Specialization · 3 - 6 Months