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.

Vanderbilt University
Skills you'll gain: Git (Version Control System), JUnit, Android Studio, Android Development, Unit Testing, Android (Operating System), Version Control, Maintainability, Software Design Patterns, Test Automation, File I/O, Object Oriented Programming (OOP), Integration Testing, Test Driven Development (TDD), Mobile Development, Development Testing, Software Testing, Testability, Software Engineering, Java Programming
★ 4.5 (3.7K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Selenium (Software), Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Eclipse (Software), File I/O, Test Tools, File Management, Cascading Style Sheets (CSS), Extensible Markup Language (XML), Test Automation, Extensible Languages and XML, Computer Programming, Development Environment, Integrated Development Environments, Software Testing, Test Script Development, Test Case, Data Structures
★ 4.6 (7) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: React Native, iOS Development, Apple iOS, Software Development Life Cycle, Flutter (Software), Mobile Development, Software Architecture, React Redux, Android Studio, User Centered Design, Android Development, Swift Programming, Responsive Web Design, Git (Version Control System), GitHub, User Interface (UI) Design, Android (Operating System), Cascading Style Sheets (CSS), Data Ethics, AI Personalization
★ 4.6 (8.3K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Java, Java Programming, Application Development, Programming Principles, Data Storage, Data Entry, Computer Programming, Algorithms
★ 4.6 (8) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Frontend Integration, Back-End Web Development, Full-Stack Web Development, Server Side, Email Automation, Data Access, Apache Tomcat, Front-End Web Development, Application Servers, Java Programming, HTML and CSS, Databases, PostgreSQL, Relational Databases, Java, User Interface (UI), Web Design, Database Development
★ 4.6 (52) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Model Deployment, Restful API, AI Integrations, Application Deployment, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), LLM Application, Java, Development Environment, Image Analysis, Software Development, Computer Vision
★ 4.6 (18) · Intermediate · Course · 1 - 4 Weeks

Meta
Skills you'll gain: React Native, Jest (JavaScript Testing Framework), Version Control, User Research, Usability Testing, Unix Commands, Restful API, Git (Version Control System), Persona (User Experience), GitHub, Interaction Design, User Experience Design, SQL, User Interface (UI), User Experience, Mobile Development, Design Research, Cross Platform Development, React.js, Javascript
★ 4.6 (11K) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Test Script Development, Development Testing, Software Testing, Testability, Java, Test Case
★ 3.6 (17) · Intermediate · Course · 1 - 4 Weeks

CentraleSupélec
Skills you'll gain: Android Studio, Android Development, Android (Operating System), Storyboarding, Application Design, Mobile Development, Application Development, Java, User Interface (UI) Design, UI Components, Java Programming, Software Documentation, Event-Driven Programming, Interactive Design, Development Environment, Software Installation, User Centered Design
★ 4.2 (2K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Cloud Deployment, Software Development Life Cycle, Istio, Software Architecture, Node.JS, React Redux, Application Deployment, Restful API, Kubernetes, Database Design, CI/CD, Cloud-Native Computing, Responsive Web Design, NoSQL, OpenShift, Git (Version Control System), Ajax, Javascript, Azure DevOps, Software Development
★ 4.6 (9.4K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Cloud Deployment, Software Development Life Cycle, Open Web Application Security Project (OWASP), Containerization, Istio, Software Architecture, Node.JS, Application Deployment, Restful API, Kubernetes, Database Design, Cloud-Native Computing, Responsive Web Design, NoSQL, Git (Version Control System), Ajax, Grafana, Javascript, Azure DevOps, Software Development
★ 4.6 (9.1K) · Beginner · Professional Certificate · 3 - 6 Months

University of Alberta
Skills you'll gain: Object Oriented Design, Unified Modeling Language, Software Design, Object Oriented Programming (OOP), Java, Java Programming, Maintainability, Code Reusability, Software Design Documents, Application Design, Conceptual Design, Diagram Design, Design Elements And Principles
★ 4.7 (2.4K) · Intermediate · Course · 1 - 4 Weeks