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: JSON
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Applications, Web Components, Javascript, Program Development, Other Programming Languages, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), UI Components, HTML and CSS, Front-End Web Development, Web Design, Animations, Javascript, Application Deployment, Interactive Design, Web Content Accessibility Guidelines, Hypertext Markup Language (HTML), Usability, Code Reusability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Scalability, Software Design Patterns, Node.JS, Distributed Computing, Dataflow, Data Pipelines, Event-Driven Programming, Object Oriented Design, Software Design, Software Architecture, Performance Tuning, Live Streaming, Real Time Data, Systems Architecture, File I/O, Javascript, Object Oriented Programming (OOP), Code Reusability, Maintainability, OS Process Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Ajax, jQuery, JSON, Javascript and jQuery, Debugging, Application Programming Interface (API), Web Applications, Javascript, Video Game Development, Program Development, Game Design, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), React.js, HTML and CSS, Front-End Web Development, Hypertext Markup Language (HTML), Web Development, Web Design, JavaScript Frameworks, Javascript, Restful API, UI Components, Event-Driven Programming
Beginner · Course · 3 - 6 Months

Skills you'll gain: React.js, HTML and CSS, Frontend Performance, Application Deployment, Web Development, Hypertext Markup Language (HTML), Front-End Web Development, Web Development Tools, Full-Stack Web Development, JavaScript Frameworks, UI Components, Performance Tuning, Cascading Style Sheets (CSS), Javascript, Server Side, GitHub, Version Control, Git (Version Control System)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TypeScript, Restful API, API Design, Full-Stack Web Development, PostgreSQL, Application Programming Interface (API), Object-Relational Mapping, Secure Coding, Web Applications, AI Integrations, JavaScript Frameworks, SQL, Front-End Web Development, React.js, Web Development Tools, Relational Databases, Database Management, Server Side, Javascript, Artificial Intelligence
Beginner · Course · 3 - 6 Months

Skills you'll gain: Security Testing, Application Security, Open Web Application Security Project (OWASP), Software Testing, Secure Coding, Test Tools, Regression Testing, Unit Testing, Penetration Testing, Security Controls, Computer Security, Test Driven Development (TDD), Debugging, User Acceptance Testing (UAT), Computer Programming, Python Programming, Node.JS, Information Privacy, JavaScript Frameworks, Javascript
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Test Driven Development (TDD), Test Script Development, Test Case, Web Development Tools, Development Testing, Unit Testing, Software Testing, Browser Compatibility, Test Tools, JavaScript Frameworks, Javascript, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Web Design and Development, Event-Driven Programming, UI Components, Front-End Web Development, Cascading Style Sheets (CSS), Javascript, Interactive Design, User Interface (UI) Design, Animations, User Interface (UI), Application Programming Interface (API), User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), Real Time Data, Data Persistence
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Node.JS, File I/O, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months