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), Performance Tuning, OS Process Management
★ 4.7 (14) · Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI Agents, Java, Java Programming, Agentic systems, Agentic Workflows, AI Workflows, Generative AI, LLM Application, Tool Calling, OpenAI API, Application Development, Prompt Engineering, Large Language Modeling, Memory Management
★ 4.2 (25) · Beginner · Course · 1 - 3 Months

Universidad de Palermo
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java, Java Programming, Software Design, Programming Principles, Software Development
★ 4.8 (17) · Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Bioinformatics, Data Storage, Development Testing, Theoretical Computer Science, Computational Thinking, Network Analysis, Computer Programming, Programming Principles, Python Programming, C and C++, Infectious Diseases, Java Programming, Java, Rust (Programming Language), Javascript, Software Testing, Debugging
★ 4.6 (17K) · Intermediate · Specialization · 3 - 6 Months

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

University of California San Diego
Skills you'll gain: Data Structures, Algorithms, Data Storage, Graph Theory, Computer Programming, C++ (Programming Language), Java Programming, Java
★ 4.6 (5.6K) · Intermediate · Course · 1 - 3 Months

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: Selenium (Software), Test Script Development, Test Automation, Eclipse (Software), Software Testing, Scripting, Test Tools, UI Components, Integrated Development Environments, Web Applications, Java, Functional Testing
★ 4.5 (362) · Beginner · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: UI Components, User Interface (UI), Computational Thinking, HTML and CSS, Web Design and Development, Interactive Design, Hypertext Markup Language (HTML), Web Development, Programming Principles, Web Design, Javascript, Event-Driven Programming, Computer Programming, Algorithms, Image Analysis, Web Applications, Cascading Style Sheets (CSS)
★ 4.6 (15K) · Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Java Programming, Data Management, Secure Coding, Theoretical Computer Science, Programming Principles, Other Programming Languages, Performance Tuning, Computer Programming
★ 3.6 (13) · Intermediate · Specialization · 1 - 3 Months

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computer Programming, Java Programming, Java
★ 4.9 (2K) · Intermediate · Course · 3 - 6 Months