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.

University of Minnesota
Skills you'll gain: Software Testing, JUnit, Verification And Validation, Unit Testing, Test Case, Test Automation, Development Testing, Test Planning, Code Coverage, Software Quality Assurance, Functional Testing, Testability, Integration Testing, Test Data, Issue Tracking
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Science, Web Development, Python Programming, Programming Principles, Artificial Intelligence, Computer Programming, Application Development, Scientific Visualization, Scripting
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Software Development Life Cycle, Object Oriented Programming (OOP), Java Programming, Java, Program Development, Software Development, Development Environment, Integrated Development Environments, Computer Programming, Software Engineering, Programming Principles
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Java, Web Servers, Encryption, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Spring Framework, JUnit, Restful API, Spring Boot, Unit Testing, Java, Hibernate (Java), Model View Controller, Web Services, Apache Maven, Databases, Web Applications, Gradle, Object Oriented Programming (OOP), Eclipse (Software), Dependency Analysis
Beginner · Course · 3 - 6 Months

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Web Development, Web Development Tools, Cascading Style Sheets (CSS), Front-End Web Development, Web Design, Javascript, Interactive Design, Web Applications, Full-Stack Web Development, Back-End Web Development
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Spring Framework, Web Applications, Java Platform Enterprise Edition (J2EE), Java, Authentications, Application Development, Software Design, Database Design, Model View Controller, Databases, Object Oriented Programming (OOP), Data Access, Maintainability
Mixed · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Application Deployment, Django (Web Framework), Ajax, Object-Relational Mapping, jQuery, HTML and CSS, Model View Controller, JSON, Database Design, SQL, Application Frameworks, Databases, Web Applications, Javascript, Application Development, Object Oriented Programming (OOP), Web Development, Data Modeling, Application Security, Cascading Style Sheets (CSS)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Debugging, UI Components, Front-End Web Development, Web Design, Semantic Web, Browser Compatibility, Web Development, Web Content Accessibility Guidelines, Web Analytics and SEO, Development Testing, Data Validation, Javascript, Animations
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, HTML and CSS, Application Deployment, Web Development, Front-End Web Development, Web Applications, Web Development Tools, Full-Stack Web Development, Web Frameworks, Performance Tuning, Javascript, Server Side, GitHub, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: JSON, Data Structures, Javascript, Application Programming Interface (API), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks