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.

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Software Design Patterns, Software Design, Object Oriented Programming (OOP), Java, Program Development, Simulations, User Interface (UI), Integrated Development Environments, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Debugging, Functional Design
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Javascript, Interactive Design, HTML and CSS, Web Design and Development, Web Content Accessibility Guidelines, Event-Driven Programming, User Interface (UI), Web Development, Data Structures, Programming Principles, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, Java, Data Structures, Program Development, Eclipse (Software), Object Oriented Programming (OOP), Computer Programming, Debugging, Application Programming Interface (API), Database Application
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SQL, Database Management, MySQL, Database Development, Database Systems, Databases, Relational Databases, Database Application, Database Design, Query Languages, Data Access, Java, Java Programming, UI Components, User Interface (UI), Transaction Processing, Software Development
Beginner · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Server Side, Data Access, Apache Tomcat, Application Servers, Relational Databases, Databases, Java, Web Servers, SQL, Authentications, Web Applications, Secure Coding, Software Design Patterns, Data Persistence, Context Management
Intermediate · Course · 1 - 3 Months

University of Alberta
Skills you'll gain: Software Architecture, Model View Controller, Unified Modeling Language, Object Oriented Design, Service Oriented Architecture, API Design, Web Services, Software Design Patterns, Software Design, Simple Object Access Protocol (SOAP), Microservices, Restful API, Code Review, Product Family Engineering, Software Systems, Object Oriented Programming (OOP), Software Development, Java, Software Documentation, Maintainability
Beginner · Specialization · 3 - 6 Months

Vanderbilt University
Skills you'll gain: Git (Version Control System), JUnit, Android Studio, Android Development, Unit Testing, Maintainability, Software Design Patterns, Test Automation, File I/O, Object Oriented Programming (OOP), Integration Testing, Test Driven Development (TDD), Mobile Development, Software Testing, Testability, Software Engineering, Java Programming, Java, Application Security, Development Testing
Beginner · Specialization · 3 - 6 Months

University of London
Skills you'll gain: jQuery, HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design and Development, Javascript and jQuery, Bootstrap (Front-End Framework), Web Design, Web Development, Javascript, Web Applications, Cascading Style Sheets (CSS), Scripting, Scripting Languages, Programming Principles, Development Environment
Mixed · Course · 1 - 3 Months

Skills you'll gain: Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Object-Relational Mapping, Java Platform Enterprise Edition (J2EE), Data Access, Data Persistence, Java, Relational Databases, Data Mapping, JUnit, Databases, Query Languages, Enterprise Application Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Functional Design, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks