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.

Meta
Skills you'll gain: React Native, iOS Development, Core Data (Software), Restful API, Version Control, Apple iOS, User Research, Usability Testing, Apple Xcode, Data Structures, Swift Programming, Jest (JavaScript Testing Framework), User Interface (UI), Unix Commands, Git (Version Control System), Persona (User Experience), GitHub, Interaction Design, Mobile Development, Javascript
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Restful API, Spring Framework, Microservices, Cloud Deployment, API Design, Spring Boot, OAuth, System Design and Implementation, Java, Systems Design, Service Oriented Architecture, Software Design, Performance Tuning, Authentications, Web Design and Development, Sprint Planning, NoSQL, SQL, Databases, Product Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Information Architecture, Software Architecture, System Configuration
Intermediate · Course · 1 - 4 Weeks
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

LearnQuest
Skills you'll gain: Object-Relational Mapping, Java Platform Enterprise Edition (J2EE), Data Access, Data Persistence, Java, Relational Databases, Data Mapping, JUnit, Databases, Query Languages, Enterprise Application Management
Intermediate · Course · 1 - 4 Weeks

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

University of California San Diego
Skills you'll gain: Java, Object Oriented Programming (OOP), Education Software and Technology, Computer Programming, Digital pedagogy, Program Development, Debugging, Data Structures
Beginner · Course · 1 - 3 Months
Skills you'll gain: Java Programming, Java, Feature Engineering, Deep Learning, Data Pipelines
Advanced · Course · 1 - 4 Weeks

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

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

Skills you'll gain: Software Development Life Cycle, Object Oriented Programming (OOP), Java Programming, Java, Program Development, Software Development, Development Environment, Integrated Development Environments, Programming Principles
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Java, Pedagogy, Debugging, Object Oriented Programming (OOP), Computer Programming, Computational Thinking, Cultural Responsiveness, Digital pedagogy
Beginner · Course · 1 - 3 Months