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: Java Programming, Java, Object Oriented Programming (OOP), Mathematical Software, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: User Interface (UI), Computational Thinking, HTML and CSS, Interactive Design, Web Development, Programming Principles, Web Design, Javascript, Event-Driven Programming, Computer Programming, Algorithms, Image Analysis, Cascading Style Sheets (CSS), Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Software Development Life Cycle, Flutter (Software), Swift Programming, Mobile Development, Software Architecture, Apple Xcode, React Redux, Android Studio, Android Development, User Centered Design, Apple iOS, Responsive Web Design, Android (Operating System), Cascading Style Sheets (CSS), Software Design, Mobile Development Tools, User Experience Design, Data Ethics, AI Personalization
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Theoretical Computer Science, Computer Programming, Computational Thinking, Programming Principles, Performance Tuning, Object-Relational Mapping
Intermediate · Specialization · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Generative AI Agents, Java, Agentic systems, Generative AI, LLM Application, OpenAI API, Application Development, Prompt Engineering, Large Language Modeling, Debugging
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Application Design, Application Development, UI Components, Event-Driven Programming, Integrated Development Environments, Java Programming, User Interface (UI), Java, Software Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Cloud Deployment, Software Development Life Cycle, Istio, Software Architecture, Node.JS, React Redux, Application Deployment, Restful API, Kubernetes, Database Design, Cloud-Native Computing, Responsive Web Design, NoSQL, OpenShift, Cloud Applications, Serverless Computing, Ajax, Javascript, Azure DevOps, Engineering Software
Beginner · Professional Certificate · 3 - 6 Months

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, React.js, Web Development Tools, Javascript
Beginner · Specialization · 3 - 6 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Object Oriented Programming (OOP), Functional Design, Computer Programming, Data Structures, Integrated Development Environments, Algorithms, Computational Thinking, Unit Testing
Intermediate · Course · 1 - 3 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, OpenShift, Ajax, Grafana, Javascript, Azure DevOps, Engineering Software
Beginner · Professional Certificate · 3 - 6 Months

Coursera
Skills you'll gain: Java, Java Programming, Algorithms, Computational Thinking, Programming Principles, Object Oriented Programming (OOP), Computer Programming, Functional Design, Development Environment
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Selenium (Software), Object Oriented Programming (OOP), Eclipse (Software), Java, Java Programming, JUnit, HTML and CSS, Test Automation, Software Testing, Test Script Development, Integrated Development Environments, Test Data, Test Tools, Browser Compatibility, Computer Programming, Web Development, Programming Principles, Test Case, Software Design, Development Environment
Beginner · Specialization · 3 - 6 Months