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.

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Code Reusability, Java Programming, Java, Program Development, Computer Science, Algorithms, Animations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Debugging, Java, Algorithms, Java Programming, Program Development, Statistical Analysis, Software Design, Computer Programming, File I/O, Data Processing, Data Manipulation, Data Analysis, Descriptive Statistics, Software Testing, Problem Solving
★ 4.6 (8.1K) · Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java, Java Programming
★ 4.9 (12K) · Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Apache Maven, Microservices, Spring Boot, Java, Java Programming, Back-End Web Development, Load Balancing, Web Services, Restful API, Web Applications
★ 4.5 (52) · Advanced · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: JUnit, Apache Maven, Restful API, Java Programming, Java, Application Deployment, Microservices, Docker (Software), Object Oriented Programming (OOP), Spring Boot, Spring Framework, Containerization, CI/CD, Unit Testing, API Design, Application Programming Interface (API), Hibernate (Java), Computer Programming, Object Oriented Design, Programming Principles
★ 4.1 (27) · Intermediate · Specialization · 1 - 3 Months

EDUCBA
Skills you'll gain: JUnit, Test Automation, Unit Testing, Java Programming, Java, Object Oriented Design, File I/O, Verification And Validation, Software Testing, Development Testing, Quality Assurance, Software Quality Assurance, System Testing, Computer Programming, Application Development, Software Development, Test Case, Data Validation, Application Design, System Design and Implementation
★ 4.9 (21) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, Java, Object Oriented Design, Memory Management, Hibernate (Java), Unit Testing, File I/O, Data Persistence, Docker (Software), Software Testing, Software Design Patterns, Integrated Development Environments
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Generative AI, Data Ethics, Generative AI Agents, ChatGPT, AI literacy, Restful API, Software Design, AI Integrations, Application Deployment, Software Architecture, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Continuous Integration, Software Development, Java, Development Environment, Machine Learning, Application Security, Java Programming
★ 4.7 (12K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, CI/CD, Spring Boot, Restful API, Java Programming, Integration Testing, Continuous Integration, Database Development, Cloud Deployment, Application Security, Java, Containerization, SQL, Databases, NoSQL, Docker (Software), Kubernetes, Test Driven Development (TDD), Object Oriented Design
★ 4.5 (52) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: API Testing, Restful API, Open Web Application Security Project (OWASP), Java Programming, API Design, API Gateway, Postman API Platform, Software Documentation, Software Testing, Application Programming Interface (API), Java, Performance Testing, Performance Tuning, Web Frameworks, Application Deployment, Application Security, Web Services, Software Versioning, Spring Boot, Computer Programming
Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, GitHub Copilot, Vibe coding, Computer Programming, IntelliJ IDEA, Code Reusability, Data Structures, Programming Principles, Program Development, Development Environment, Integrated Development Environments, Spring Boot, Computer Programming Tools, Code Review, Software Installation, Application Deployment, Back-End Web Development
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Event-Driven Programming, Interactive Data Visualization, Java, Java Programming, Object Oriented Programming (OOP), User Interface (UI), Object Oriented Design, Computer Programming, UI Components, User Interface (UI) Design, Algorithms, Software Engineering, Geospatial Mapping, Software Documentation
★ 4.7 (5.8K) · Intermediate · Course · 1 - 3 Months