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.

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java, Context Management, Web Applications, Server Side, Data Storage, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, File I/O, Integrated Development Environments, Functional Design
Beginner · Course · 3 - 6 Months

Skills you'll gain: Web Services, Restful API, Apache Maven, Build Tools, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Application Programming Interface (API), Java, Java Programming, API Design, Object-Relational Mapping, Data Persistence, JSON, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months

Vanderbilt University
Skills you'll gain: JUnit, Unit Testing, Maintainability, Software Design Patterns, Software Testing, Test Automation, Integration Testing, Test Driven Development (TDD), Development Testing, Testability, Software Engineering, Test Tools, Secure Coding, Android Development, Application Security, Software Design, Mobile Security
Mixed · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Java, Performance Tuning, System Programming, Code Reusability, Application Performance Management, Algorithms, JUnit, OS Process Management, Application Frameworks, Frontend Performance, Frontend Integration, Programming Principles, Spring Boot
Beginner · Course · 1 - 3 Months

Skills you'll gain: Server Side, Node.JS, Full-Stack Web Development, Back-End Web Development, Restful API, Web Applications, JavaScript Frameworks, Web Services, Web Development, Authentications, Application Programming Interface (API), Javascript, Middleware, Computer Science
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Frontend Integration, CI/CD, Jenkins, Docker (Software), Spring Boot, Continuous Integration, Configuration Management, Containerization, Cloud-Native Computing, Scalability, Software Documentation, Application Deployment, Java, API Design, Java Programming, API Gateway, Back-End Web Development, JUnit, Application Programming Interface (API), React.js
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Digital Transformation, Cloud Computing Architecture, Systems Design, Business Transformation, SAP S/4HANA, Cloud Computing, Systems Architecture, System Design and Implementation, Security Management, Software Architecture, Cyber Attacks, Software Design, Security Strategy, SAP Applications, Cyber Governance, Cybersecurity, Cloud Platforms, ABAP RESTful Programming Model (RAP), Case Studies, Business Analysis
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Application Specific Integrated Circuits, Hardware Design, Computer-Aided Design, Electrical and Computer Engineering, Network Routing, Computational Logic, Electrical Engineering, Data Structures, Algorithms, Applied Mathematics, Mathematical Modeling, Calculus
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, JSON, User Interface (UI) Design, Color Theory, Cascading Style Sheets (CSS), User Interface (UI), HTML and CSS, Hypertext Markup Language (HTML), Restful API, Web Content Accessibility Guidelines, Event-Driven Programming, User Interface and User Experience (UI/UX) Design, Web Design, Typography, API Design, Web Applications, Digital Design, React.js, Javascript, Web Development
Beginner · Specialization · 3 - 6 Months

Universidade de São Paulo
Skills you'll gain: Model View Controller, Unified Modeling Language, Object Oriented Programming (OOP), Software Design Patterns, Object Oriented Design, Software Design, Java Programming, Computer Programming, Maintainability, Program Development, Debugging, Software Architecture, Programming Principles, Software Testing, Other Programming Languages, Prototyping
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, React Native, Responsive Web Design, Browser Compatibility, HTML and CSS, Cross Platform Development, Hypertext Markup Language (HTML), Web Design and Development, Javascript, Application Development, Application Frameworks, JavaScript Frameworks, Cascading Style Sheets (CSS), Web Development, React.js, UI Components
Beginner · Course · 1 - 4 Weeks