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 California San Diego
Skills you'll gain: Unit Testing, Growth Mindedness, Data Structures, Graph Theory, Event-Driven Programming, Social Network Analysis, Interactive Data Visualization, Java, Java Programming, Network Analysis, Object Oriented Programming (OOP), Technical Communication, User Interface (UI), Peer Review, Object Oriented Design, Software Testing, Computer Programming, Program Development, Adaptability, Problem Solving
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: File I/O, Git (Version Control System), Software Development Methodologies, JUnit, Systems Development Life Cycle, Requirements Analysis, Version Control, Application Development, Software Development Life Cycle, Full-Stack Web Development, Test Driven Development (TDD), SQL, Software Development, Restful API, Database Management, Object Oriented Programming (OOP), Decision Intelligence, Digital Transformation, Java Programming, Generative AI
Beginner · Professional Certificate · 3 - 6 Months

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Design, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Code Reusability, Other Programming Languages, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microservices, Google Cloud Platform, Cloud Applications, Spring Framework, Cloud Development, Spring Boot, Database Management, Cloud Deployment, Cloud-Native Computing, Databases, Database Development, Database Systems, Software Architecture, Application Frameworks, Application Performance Management, Service Oriented Architecture, Application Deployment, Configuration Management
Intermediate · 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
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Web Development Tools, Javascript, Unit Testing, Web Applications, Programming Principles, Object Oriented Programming (OOP), Event-Driven Programming, Node.JS, JSON, Test Script Development, Computer Programming, Test Case, Data Structures, Package and Software Management, Front-End Web Development, Functional Design
Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Java, Performance Testing, Java Programming, Computational Thinking, Memory Management, Spatial Data Analysis
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Apache Maven, Spring Framework, Microservices, Spring Boot, Java, Java Programming, Back-End Web Development, Software Architecture, Server Side, Load Balancing, Web Services, Restful API, Web Applications
Advanced · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Debugging, Bioinformatics, Java, Algorithms, Java Programming, Program Development, Object Oriented Design, Programming Principles, Statistical Analysis, Software Design, Computer Programming, File I/O, Data Processing, Software Documentation, Data Manipulation, Object Oriented Programming (OOP), Data Analysis, Descriptive Statistics, Web Scraping, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Prompt Patterns, ChatGPT, Generative AI, Data Ethics, Generative AI Agents, Model Deployment, Restful API, Software Design Documents, Software Design, AI Integrations, Application Deployment, AI literacy, Software Architecture, Agentic Workflows, Continuous Integration, Software Development, LLM Application, Artificial Intelligence and Machine Learning (AI/ML), Java Programming
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Java Programming, Java, Integrated Development Environments, Mobile Development, Computer Programming, Programming Principles, Data Structures
Beginner · Guided Project · Less Than 2 Hours

Heriot-Watt University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Computer Programming, Application Development, Program Development, Programming Principles, Computational Logic, Software Development, Software Development Life Cycle, Debugging
Build toward a degree
Beginner · Course · 1 - 4 Weeks