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, Javascript, Ajax, JavaScript Frameworks, Web Development Tools, Software Testing, Frontend Performance, Event-Driven Programming, Hypertext Markup Language (HTML), Web Servers, Data Validation, Data Structures
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, HTML and CSS, Front-End Web Development, Web Development Tools, Web Design and Development, Bootstrap (Front-End Framework), React.js, Javascript, UI Components, JavaScript Frameworks, Web Components, Semantic Web
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Debugging, Software Design, User Interface (UI), Integrated Development Environments, Java, Program Development, Application Design, Object Oriented Programming (OOP), User Interface (UI) Design, Data Validation, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Angular, JavaScript Frameworks, Model View Controller, Javascript, Web Development Tools, Web Development, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Applications, Javascript, Web Design, Web Development, Front-End Web Development, Animation and Game Design
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Front-End Web Development, Javascript, Web Development Tools, UI Components, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: TypeScript, Web Development Tools, Debugging, Javascript, Integrated Development Environments, Software Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Javascript, Scripting, Event-Driven Programming, Computational Logic, Maintainability, Object Oriented Programming (OOP), Programming Principles, Debugging, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Design, Restful API, Application Programming Interface (API), Application Deployment, Spring Boot, Spring Framework, Back-End Web Development, Data Modeling, Database Design, Software Architecture, Object-Relational Mapping, System Configuration, Data Persistence, Business Logic
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Javascript, Frontend Performance, Web Development Tools, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Web Services, Extensible Markup Language (XML), Java Platform Enterprise Edition (J2EE), Java, Web Applications
Beginner · Course · 1 - 4 Weeks