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.

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

Amazon Web Services
Skills you'll gain: Amazon Web Services, Web Applications, Amazon Elastic Compute Cloud, Information Technology, Cloud Computing, Public Cloud, IT Infrastructure, Amazon S3, General Networking, Network Security, Web Servers, Operating Systems, Servers, Data Centers, Hypertext Markup Language (HTML), Computer Hardware, Javascript, Data Analysis, Project Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Development, React Native, Responsive Web Design, Browser Compatibility, HTML and CSS, Cross Platform Development, Web Design and Development, Javascript, Application Development, Web Development
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Software Design Patterns, Java, Enterprise Architecture, Secure Coding, Application Servers, Software Design, Model View Controller, Software Architecture, Application Security, Maintainability, Programming Principles, Authorization (Computing), Authentications, Debugging, Scalability
Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Software Design Patterns, Software Design, Software Quality Assurance, Software Engineering, Program Development, Application Security, Object Oriented Design, Software Architecture, Software Quality (SQA/SQC), Development Testing, Threat Modeling, Maintainability, Development Environment, Code Review, Application Deployment, Continuous Deployment, Quality Assurance, Security Requirements Analysis, Continuous Delivery, Software Testing
Intermediate · Course · 1 - 3 Months
Universidad Austral
Skills you'll gain: Responsive Web Design, LESS, Bootstrap (Front-End Framework), Version Control, HTML and CSS, Web Design and Development, Web Development Tools, Cascading Style Sheets (CSS), Front-End Web Development, JavaScript Frameworks, Web Components, Javascript and jQuery, Application Deployment, Node.JS, Javascript
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Model View Controller, Spring Framework, Restful API, Spring Boot, Web Services, JSON, YAML, Web Applications, Configuration Management, Angular, Java Programming, Application Frameworks, Software Architecture, Middleware, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, Software Design Patterns, Functional Design, Maintainability
Intermediate · Course · 3 - 6 Months

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

Meta
Skills you'll gain: Full-Stack Web Development, Front-End Web Development, Django (Web Framework), Scalability, Responsive Web Design, Web Applications, Back-End Web Development, MySQL, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Cloud Computing, Application Programming Interface (API), Virtual Environment, Javascript, Database Management
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: C (Programming Language), C++ (Programming Language), Object Oriented Programming (OOP), Data Structures, Programming Principles, Algorithms, Computer Programming, Software Design, Application Security, Other Programming Languages, Python Programming, Java Programming, System Programming, Computer Architecture, Performance Tuning, Unix, Computer Science, Debugging
Intermediate · Specialization · 3 - 6 Months

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Test Driven Development (TDD), Unit Testing, JUnit, Test Automation, Software Testing, Testability, Maintainability, Software Design, Software Development, White-Box Testing, Object Oriented Programming (OOP), Software Quality (SQA/SQC), Programming Principles
Intermediate · Course · 1 - 4 Weeks