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.

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

The Linux Foundation
Skills you'll gain: Bash (Scripting Language), File Systems, Package and Software Management, Linux, Command-Line Interface, Unix Commands, Linux Commands, Shell Script, Scripting, Software Development Tools, File Management, Scripting Languages, Program Development, System Programming, Java, Debugging
Beginner · Course · 1 - 4 Weeks

University of Alberta
Skills you'll gain: Service Oriented Architecture, API Design, Web Services, Simple Object Access Protocol (SOAP), Microservices, Restful API, Software Architecture, Application Programming Interface (API), Web Applications, JSON, Android Development
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Wireframing, Web Content Accessibility Guidelines, Responsive Web Design, HTML and CSS, Browser Compatibility, Web Design, Front-End Web Development, User Interface (UI), Verification And Validation, Cascading Style Sheets (CSS), Application Frameworks, Usability, Code Review, Javascript
Beginner · Course · 1 - 3 Months

Skills you'll gain: Spring Framework, JUnit, Restful API, Spring Boot, Unit Testing, Java, Hibernate (Java), Model View Controller, Web Services, Apache Maven, Databases, Web Applications, Gradle, Object Oriented Programming (OOP), Eclipse (Software), Dependency Analysis
Beginner · Course · 3 - 6 Months

Skills you'll gain: PostgreSQL, Java, Java Platform Enterprise Edition (J2EE), Application Servers, Database Design, Databases, Application Design, Back-End Web Development, Web Applications, Javascript, Secure Coding, Data Validation, Payment Systems, Document Management, Authentications, Verification And Validation, File Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Flutter (Software), Mobile Development, React Redux, React.js, Ajax, Javascript, JavaScript Frameworks, Apple iOS, Front-End Web Development, Data Structures, Debugging, iOS Development, User Story, Android Development, UI Components, Cross Platform Development, JSON, Full-Stack Web Development, Scripting
Beginner · Specialization · 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Computational Logic, Application Specific Integrated Circuits, Theoretical Computer Science, Data Structures, Verification And Validation, Computer Architecture, Systems Design, Algorithms, Computer Engineering, Mathematical Software, Design Software, Computer Programming Tools, Debugging, Digital Design, Software Development Tools
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Android Development, Mobile Development, Software Design, User Interface (UI) Design, Java Programming, Data Sharing, Database Management, Service Management
Beginner · Course · 1 - 4 Weeks

Hebrew University of Jerusalem
Skills you'll gain: Computer Science, Computer Engineering, Computer Architecture, Computer Programming, System Programming, Virtual Machines, Operating Systems, Software Architecture, Algorithms, Software Design, Program Development, Object Oriented Programming (OOP), Data Structures, Computer Graphics
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Java, Web Servers, Encryption, Software Installation
Intermediate · Course · 1 - 4 Weeks

Instituto Tecnológico de Aeronáutica
Skills you'll gain: User Story, Agile Software Development, Backlogs, Agile Methodology, Scrum (Software Development), Sprint Retrospectives, Test Driven Development (TDD), Requirements Analysis, Sprint Planning, Unified Modeling Language, Software Development Methodologies, Software Engineering, Software Development
Intermediate · Course · 1 - 4 Weeks