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.

Board Infinity
Skills you'll gain: Ajax, jQuery, JSON, Extensible Markup Language (XML), Web Applications, Javascript, Web Development Tools, Application Programming Interface (API), Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Restful API, Application Programming Interface (API), Back-End Web Development, Microsoft Visual Studio, Web Applications, Javascript, Application Development
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Vue.JS, Web Development Tools, Web Applications, Front-End Web Development, HTML and CSS, Javascript, Microsoft Visual Studio
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: React.js, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cucumber (Software), Behavior-Driven Development, Selenium (Software), Gherkin (Scripting Language), Test Automation, JUnit, Apache Maven, Test Case, Scenario Testing, Test Execution Engine, User Story, Java Programming, Maintainability
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Responsive Web Design, Restful API, User Interface (UI) Design, Application Programming Interface (API), Web Development Tools, Database Design, HTML and CSS, User Interface and User Experience (UI/UX) Design, API Design, Front-End Web Development, MongoDB, Javascript, Postman API Platform, Bootstrap (Front-End Framework), React.js, Database Management, OAuth, Authentications, Relational Databases, Software Documentation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: AWS Identity and Access Management (IAM), Linux Administration, Amazon Elastic Compute Cloud, Linux Servers, Identity and Access Management, Cloud Infrastructure, Amazon Web Services, Cloud Hosting, Cloud Computing, Front-End Web Development, Cloud Management, Linux, Ubuntu, Operating System Administration, Application Deployment, React.js, Event-Driven Programming, Javascript, User Interface (UI), Apache
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Git (Version Control System), Selenium (Software), Version Control, GitHub, Jenkins, Continuous Integration, CI/CD, Test Automation, Browser Compatibility, Test Data, Java, SQL, MySQL
Intermediate · Course · 1 - 3 Months

University of Leeds
Skills you'll gain: Web Design and Development, Web Development, Web Content Accessibility Guidelines, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, Full-Stack Web Development, Data Security, Web Content, Back-End Web Development, Program Development, Cascading Style Sheets (CSS), Javascript, Information Privacy, Computer Architecture
Beginner · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: React.js, JavaScript Frameworks, Web Applications, UI Components, Application Development, User Interface (UI), Front-End Web Development, Javascript
Beginner · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: Public Cloud, Big Data, Apache Hadoop, Apache Spark, Data Architecture, Cloud Services, Data Processing, Distributed Computing, Cloud Computing, Scalability, NoSQL, File Systems, Data Storage
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), UI Components, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Web Design, React.js, Responsive Web Design, User Centered Design, Javascript
Intermediate · Course · 1 - 4 Weeks