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.

Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Javascript, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Web Applications, Web Design and Development, Debugging, HTML and CSS, Web Development, Mobile Development, Database Application, Web Development Tools, Responsive Web Design, Real Time Data, Frontend Performance, User Interface (UI), Secure Coding, Javascript, Data Access, Data Management, Application Deployment
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Web Development Tools, Data Structures, Javascript, Data Access, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

The Hong Kong University of Science and Technology
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), jQuery, Javascript and jQuery, Web Design and Development, Javascript, Web Development, Animations, Front-End Web Development, Animation and Game Design, Web Applications, Computer Graphics, Event-Driven Programming, Code Reusability, Software Design Patterns
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, HTML and CSS, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Semantic Web, Web Development Tools, Javascript, Responsive Web Design, Web Content, Web Presence, Verification And Validation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Cloud Hosting, Web Development, Cloud Deployment, Responsive Web Design, Web Design, Web Presence, Application Deployment, Typography, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Automation, Behavior-Driven Development, Gherkin (Scripting Language), Test Script Development, Unit Testing, Software Testing, Jenkins, CI/CD, Continuous Integration, Test Tools, Apache Maven, Automation, Test Case, Software Configuration Management, DevOps, Java, C# (Programming Language), Java Programming, Python Programming
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Java, Cascading Style Sheets (CSS), Data Mapping, Data Validation, Memory Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Real Time Data, Apache Spark, Apache Kafka, Data Integration, AWS Kinesis, Apache Hive, Data Pipelines, Big Data, Applied Machine Learning, Systems Design, System Design and Implementation, Distributed Computing, Query Languages, Data Processing, NoSQL, MongoDB, Data Import/Export, SQL, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Application Deployment, Cascading Style Sheets (CSS), Development Environment, Webpack, Animations, Javascript, Web Development Tools, Hypertext Markup Language (HTML), UI Components, Typography
Beginner · Course · 1 - 3 Months

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