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: Angular, Cascading Style Sheets (CSS), Responsive Web Design, Web Design and Development, Front-End Web Development, HTML and CSS, jQuery, React.js, Javascript, Web Applications, JavaScript Frameworks, Web Development, Bootstrap (Front-End Framework), Frontend Integration, Ajax, Application Frameworks, UI Components, digital literacy, Hypertext Markup Language (HTML), Web Content Accessibility Guidelines
★ 4.4 (53) · Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Test Case, Eclipse (Software), Test Tools, Test Data, Test Automation, Test Execution Engine, Integrated Development Environments, Java
★ 3.9 (54) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Docker (Software), Containerization, Web Design and Development, Restful API, User Interface (UI) Design, Node.JS, Application Deployment, MongoDB, Database Management, Databases, JavaScript Frameworks, Web Applications, Web Development, Web Development Tools, Database Application, Server Side, Back-End Web Development, Full-Stack Web Development, Javascript
★ 4.2 (33) · Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Javascript, Front-End Web Development, Cascading Style Sheets (CSS)
★ 4.2 (46) · Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Secure Coding, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Security Awareness
★ 4.5 (70) · Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Microservices, Systems Architecture, Application Deployment, Software Architecture, Scalability, Service Oriented Architecture, Java Programming, Distributed Computing, Software Design, Software Design Patterns, Dependency Analysis, Service Management
★ 4.2 (38) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Field-Programmable Gate Array (FPGA), Hardware Design, Laboratory Experience, Laboratory Reports, Embedded Software, Electronic Hardware, Electrical and Computer Engineering, Electronics Engineering, Laboratory Testing, Engineering Documentation, Electronic Systems, Debugging, System Design and Implementation, Program Development, Software Design, Software Development, Functional Design, Simulation and Simulation Software, Development Environment, Eclipse (Software)
★ 4.3 (27) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, Application Development, API Testing, Java Programming, Web Development, Program Development, Application Frameworks, Software Testing, Test Case, Secure Coding, Development Environment, Model View Controller, Software Development Tools, UI Components, Data Access, Authentications, SQL, Object Oriented Programming (OOP), Data Persistence, User Interface (UI)
★ 4.7 (19) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Cloud Deployment, CI/CD, Full-Stack Web Development, MongoDB, Application Design, Continuous Integration, Application Deployment, Cloud Applications, React.js, DevOps, NoSQL, Databases, Database Management, Kubernetes, JavaScript Frameworks, Front-End Web Development, Software Architecture, Application Development, Authorization (Computing), Javascript
★ 4.7 (44) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Other Programming Languages, Program Development, C and C++, C++ (Programming Language), Application Development, Computer Programming, Development Environment, Programming Principles, Software Development, Computer Science
★ 4.4 (61) · Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Performance Management, Software Design Patterns, Java, Enterprise Architecture, Java Programming, Enterprise Application Management, Secure Coding, Software Design, Model View Controller, System Monitoring, Security Controls, Software Architecture, Application Security, Maintainability, Application Frameworks, Programming Principles, Authorization (Computing), Authentications, Program Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Software Documentation, Java, API Design, Java Programming, Back-End Web Development, Application Programming Interface (API), Enterprise Application Management, Application Deployment, Databases, Data Persistence
★ 3.7 (15) · Beginner · Course · 1 - 4 Weeks