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.

LearnKartS
Skills you'll gain: Apache Kafka, Microservices, Data Pipelines, Distributed Computing, Live Streaming, Network Monitoring
Intermediate Ā· Course Ā· 1 - 4 Weeks

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

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, API Design, Front-End Web Development, MongoDB, Javascript, Postman API Platform, Bootstrap (Front-End Framework), React.js, UI Components, Ajax, Database Management, OAuth, Frontend Integration, Authentications
Intermediate Ā· Specialization Ā· 1 - 3 Months

Skills you'll gain: Javascript, JSON, Web Applications, Computer Programming, Application Design, Scripting Languages, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Prototyping, Context Management
Beginner Ā· Specialization Ā· 3 - 6 Months

Skills you'll gain: Extensible Markup Language (XML), Android Development, Mobile Development, Real Time Data, Data Integration, UI Components, User Interface (UI), Java Programming
Mixed Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Web Design and Development, Web Design, Web Content Accessibility Guidelines, Visualization (Computer Graphics), Computer Graphics, Front-End Web Development, Semantic Web, Web Content, Usability, Javascript, Data Validation
Mixed Ā· Course Ā· 1 - 4 Weeks
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Javascript, Software Design Patterns, Data Management, Data Structures, Prototyping, Web Development, Performance Tuning
Intermediate Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Cloud Management, Spring Framework, Responsible AI, Java, Artificial Intelligence, Technical Services, Cloud Deployment, Restful API, Debugging
Intermediate Ā· Course Ā· 1 - 4 Weeks

Coursera
Skills you'll gain: Ajax, JSON, Javascript, Frontend Integration, Application Programming Interface (API), Restful API, Web Applications, Application Security, Debugging
Intermediate Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: AWS Identity and Access Management (IAM), Linux Administration, Amazon Elastic Compute Cloud, Linux Servers, Cloud Deployment, 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 Ā· Specialization Ā· 3 - 6 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Web Design, Event-Driven Programming, Web Design and Development, Development Environment, Web Development, User Interface and User Experience (UI/UX) Design, Web Applications, Interactive Design, Animations, Typography, Color Theory, Web Analytics and SEO, Debugging, Data Validation
Beginner Ā· Specialization Ā· 1 - 3 Months