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: Angular, Authorization (Computing), JavaScript Frameworks, Network Routing, Application Programming Interface (API), Web Development Tools, TypeScript, Javascript, Web Development
Advanced · Guided Project · Less Than 2 Hours
Skills you'll gain: Django (Web Framework), Web Applications, Expense Management, Application Development, Database Application, Data Visualization, Business Process Automation, Python Programming, Data Modeling, Development Environment, Data Security, GitHub, Javascript, Project Documentation, Git (Version Control System)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Data Validation, Data Mapping, Verification And Validation, Data Sharing, Javascript, Document Management, Hypertext Markup Language (HTML), Technical Documentation, Interoperability, Maintainability, Data Integrity, Information Architecture, Software Documentation, Data Management, Scripting, Web Content Accessibility Guidelines
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Ajax, Object Oriented Programming (OOP), Javascript, JSON, Application Programming Interface (API), Scripting, Software Design Patterns, Data Management, Data Structures, Event-Driven Programming, Data Validation, Prototyping, Programming Principles, Web Development, Software Development, Debugging, Software Engineering, Performance Tuning
Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: JUnit, Testability, Unit Testing, Software Testing, Test Case, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: React.js, Ajax, Cascading Style Sheets (CSS), JavaScript Frameworks, UI Components, Restful API, Web Applications, Web Development, Javascript, Application Development, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: JSON, Restful API, Web Applications, Application Programming Interface (API), Responsive Web Design, Cascading Style Sheets (CSS), Event-Driven Programming, Ajax, Web Services, HTML and CSS, Javascript, Web Design and Development, Wireframing, Web Development, Real Time Data, Web Development Tools, Web Servers, Game Design, Hypertext Markup Language (HTML), Software Development
Intermediate · Specialization · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Distributed Computing, Algorithms, Performance Tuning, Functional Design, Performance Testing, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Scripting, Google Workspace, Web Development Tools, Javascript, Google Cloud Platform, Spreadsheet Software, Programming Principles, Web Development
Beginner · Project · Less Than 2 Hours

Skills you'll gain: JSON, Javascript, Ajax, Web Development Tools, Unit Testing, Development Testing, Event-Driven Programming, Hypertext Markup Language (HTML), Data Validation, Data Structures, Performance Tuning, Network Protocols
Beginner · Course · 1 - 3 Months

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