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.

University of New Mexico
Skills you'll gain: Web Applications, Full-Stack Web Development, Git (Version Control System), Middleware, Software Architecture, User Interface (UI), Agile Software Development, Application Frameworks, Ajax, Model View Controller, Databases, Relational Databases, Software Development, Ruby on Rails, Software Design Patterns, Cascading Style Sheets (CSS), Javascript
Mixed · Course · 1 - 3 Months

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Object Oriented Programming (OOP), Software Design Patterns, Object Oriented Design, Java, Software Design, Application Design, Test Driven Development (TDD)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React.js, ASP.NET, Restful API, .NET Framework, Web Applications, Web Services, Hypertext Markup Language (HTML), Front-End Web Development, JSON, Application Development, JavaScript Frameworks, Model View Controller, Application Frameworks, Program Development, Javascript, Development Environment, Back-End Web Development, Web Development, Microsoft Visual Studio, Cascading Style Sheets (CSS)
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: React.js, Debugging, Front-End Web Development, Web Development, JavaScript Frameworks, HTML and CSS, UI Components, Javascript, Cascading Style Sheets (CSS)
Intermediate · Guided Project · Less Than 2 Hours

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java, Computer Programming, Spatial Data Analysis, Theoretical Computer Science, Simulations
Intermediate · Course · 3 - 6 Months

University of Colorado System
Skills you'll gain: Unified Modeling Language, Unit Testing, Software Design, Software Engineering Tools, Software Engineering, Systems Design, Design, Development Testing, Data Ethics, Computer Programming Tools, Software Architecture, Software Development Methodologies, Test Driven Development (TDD), Dataflow
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, CI/CD, Application Design, Application Deployment, Full-Stack Web Development, Back-End Web Development, Cloud Applications, Cloud Development, Front-End Web Development, Serverless Computing, Node.JS, Restful API, Application Development, HTML and CSS, Microservices, Software Architecture, User Accounts, Docker (Software), Django (Web Framework), Javascript
Advanced · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Object Oriented Design, Software Design, Records Management, Programming Principles
Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Test Automation, Regression Testing, Software Testing, Unit Testing, Test Tools, System Testing, Code Coverage, Security Testing, Verification And Validation, Test Case, Test Data, Debugging, Automation, Functional Requirement, Application Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Role-Based Access Control (RBAC), Postman API Platform, Authentications, Authorization (Computing), Restful API, Java Programming, Spring Boot, User Accounts, Application Programming Interface (API), Application Security, Back-End Web Development, Web Applications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Routing Protocols, UI Components, JavaScript Frameworks, Front-End Web Development, Web Content Accessibility Guidelines, Performance Tuning, Web Development Tools, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), TypeScript, Ajax, Debugging, Javascript, Software Design Patterns, Restful API, Application Performance Management, Web Frameworks
Intermediate · Specialization · 3 - 6 Months

University of New Mexico
Skills you'll gain: Middleware, Application Frameworks, Web Applications, Model View Controller, Agile Software Development, Git (Version Control System), Software Engineering, Web Development, Software Development, User Interface (UI), Databases, Relational Databases, Ajax, Software Architecture, Ruby on Rails, Javascript, Network Protocols
Mixed · Course · 1 - 3 Months