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: Web Applications, Web Design and Development, Debugging, HTML and CSS, Web Development, Mobile Development, Database Application, Web Development Tools, Responsive Web Design, Real Time Data, Frontend Performance, User Interface (UI), Secure Coding, Javascript, Data Access, Data Management, Application Deployment
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Unified Modeling Language, Software Design, Java, Java Programming, Software Architecture, User Interface and User Experience (UI/UX) Design, API Design, Software Development, AI Integrations
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Test Tools, Test Data, Test Case, Test Script Development, Software Testing, Test Execution Engine, Java, Automation, Code Reusability
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Data Structures, Javascript, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Web Development Tools, Data Structures, Javascript, Data Access, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Version Control, Git (Version Control System), GitHub, Jenkins, Continuous Integration, Test Automation, CI/CD, Test Data, Test Script Development, Software Versioning, Software Testing, IntelliJ IDEA, Test Case, Development Environment, Application Frameworks, Apache Maven
Advanced · Course · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), jQuery, Javascript and jQuery, Web Design and Development, Javascript, Web Development, Animations, Front-End Web Development, Animation and Game Design, Web Applications, Visualization (Computer Graphics), Computer Graphics, Event-Driven Programming, Code Reusability, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Java, Test Automation, System Testing, Object Oriented Programming (OOP), Continuous Delivery, Test Script Development, Software Testing, Integration Testing, Build Tools, Browser Compatibility
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Cloud Hosting, Web Development, Cloud Deployment, Responsive Web Design, Web Design, Web Presence, Application Deployment, Typography, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JavaScript Frameworks, Event-Driven Programming, Javascript, Frontend Performance, Frontend Integration, Object Oriented Programming (OOP), Video Game Development, Web Development, Scripting, Development Environment, Cascading Style Sheets (CSS), Front-End Web Development, Data Validation, Real Time Data, Prototyping, Data Integrity, Programming Principles, Computational Logic, Data Storage, Code Reusability
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Application Deployment, Cascading Style Sheets (CSS), Web Design and Development, Development Environment, Webpack, Animations, Javascript, Web Development Tools, Hypertext Markup Language (HTML), UI Components, Typography
Beginner · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Test Script Development, Software Testing, Javascript, Browser Compatibility, Automation, Web Development Tools, Cascading Style Sheets (CSS), File Management, Software Installation, System Configuration
Intermediate · Course · 1 - 3 Months