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.

Vanderbilt University
Skills you'll gain: Spring Boot, Spring Framework, Restful API, Application Programming Interface (API), API Design, Data Persistence, Web Applications, Application Frameworks, Software Testing, Object-Relational Mapping, Hibernate (Java), Application Security, Authentications, JSON, Authorization (Computing), Dependency Analysis
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Angular, Test Driven Development (TDD), Web Components, HTML and CSS, Web Development, Software Testing, Cascading Style Sheets (CSS), Front-End Web Development, Development Environment, UI Components, Javascript, Data Persistence, Event-Driven Programming, Data Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Web Applications, Javascript, Web Development, Node.JS, Security Controls, Web Servers, Hypertext Markup Language (HTML), Java Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Development Environment, Software Development Tools, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Cloud Development, Event-Driven Programming, Development Testing, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Debugging, Software Design, User Interface (UI), Apache Maven, Object Oriented Programming (OOP), Program Development, Application Design, Build Tools, Integrated Development Environments, Software Development Tools, User Interface (UI) Design, Eclipse (Software), Data Validation, Version Control, JUnit, Software Development, Git (Version Control System), Data Import/Export, Java
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Docker (Software), Containerization, Restful API, User Interface (UI), HTML and CSS, Node.JS, MongoDB, Database Management, Databases, JavaScript Frameworks, Web Applications, Web Development, Web Development Tools, Back-End Web Development, Full-Stack Web Development, Application Development, Javascript, GitHub
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: System Programming, Distributed Computing, Scalability, Data Integrity
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Restful API, Web Services, Hypertext Markup Language (HTML), HTML and CSS, Java Platform Enterprise Edition (J2EE), Software Design, Java, Extensible Markup Language (XML), Application Programming Interface (API), API Design, JSON, Software Architecture, Web Design and Development, Web Applications, Front-End Web Development, Web Development
Beginner · Specialization · 1 - 3 Months

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

Accenture
Skills you'll gain: Data Literacy, Computer Literacy, Microsoft Excel, digital literacy, Data Analysis, Data-Driven Decision-Making, Emerging Technologies, Data Collection, Computer Security Awareness Training, Digital Communications, Computer Programming, Productivity Software, Web Development, Information Technology, Business Technologies, Javascript, Python Programming, Blockchain, Cloud Computing, Computer Hardware
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Business Process Automation, Data Presentation, Java, Productivity Software, C# (Programming Language), Data Capture, File I/O, Programming Principles, Scalability, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Database Application, Full-Stack Web Development, Web Applications, Model View Controller, Authentications, Business Logic, SQL
Beginner · Course · 1 - 4 Weeks