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

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

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, SQL, Database Management, Data Access, Databases, Database Systems, Java, Java Programming, JUnit
Beginner · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Linux Administration, Devops Tools, Operating System Administration, General Networking, Linux, Linux Commands, Web Applications, Application Development, TCP/IP, Computer Networking, DevOps, Package and Software Management, Development Environment, Java, Software Installation, Node.JS
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, Application Development, Application Deployment, Application Frameworks, Software Testing, Test Case, Development Environment, Model View Controller, API Design, Software Development Tools, Java Platform Enterprise Edition (J2EE), UI Components, Data Access, Authentications, SQL, Object Oriented Programming (OOP), JSON, Functional Design, Databases
Intermediate · Specialization · 1 - 3 Months

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, Web Applications, Agile Software Development, Application Frameworks, Ruby on Rails, Software Development, Data Modeling, User Interface (UI) Design, Ajax, Software Architecture, Full-Stack Web Development, Model View Controller, Git (Version Control System), Software Development Tools, Relational Databases, Software Design Patterns, Javascript, Network Protocols
Mixed · Course · 1 - 3 Months

Microsoft
Skills you'll gain: GitHub, C# (Programming Language), Secure Coding, HTML and CSS, User Interface and User Experience (UI/UX) Design, Figma (Design Software), Open Web Application Security Project (OWASP), Git (Version Control System), User Interface (UI), Object Oriented Programming (OOP), Web Development, Web Design, Debugging, Mockups, Microsoft Copilot, Authentications, Front-End Web Development, Programming Principles, UI Components, Javascript
Beginner · Professional Certificate · 3 - 6 Months

Packt
Skills you'll gain: Spring Boot, Hibernate (Java), Web Applications, Application Development, Application Deployment, Restful API, Application Frameworks, Bootstrap (Front-End Framework), Development Environment, Model View Controller, Java Platform Enterprise Edition (J2EE), UI Components, Authentications, Databases
Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: C# (Programming Language), Object Oriented Programming (OOP), C and C++, .NET Framework, Data Access, Microsoft Visual Studio, Extensible Markup Language (XML), Data Structures, Database Management, Algorithms, User Interface (UI), Network Model, Application Development, Computer Graphics, File Management
Intermediate · Course · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Android Development, Mobile Development, Data Management, User Interface (UI), UI Components, Human Computer Interaction, Java Programming, System Programming, Network Model, Geographic Information Systems, Interactive Design, Animations, Computer Programming, Computer Graphics
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Development Tools, Browser Compatibility, Application Deployment, Front-End Web Development, Web Design and Development, Web Development, Animations, Software Development Tools, UI Components, User Interface and User Experience (UI/UX) Design, Usability, Javascript, Maintainability, Interactive Design
Beginner · Specialization · 3 - 6 Months