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.

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

Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Data Structures, Computer Programming, Program Development, File Management, Algorithms, Debugging, Problem Solving
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Wireframing, Responsive Web Design, HTML and CSS, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Web Design, Hypertext Markup Language (HTML), Browser Compatibility, Bootstrap (Front-End Framework), Javascript, Front-End Web Development, User Interface (UI), Verification And Validation, Web Development, Web Design and Development, Interactive Design, Application Frameworks, Usability, Code Review, Event-Driven Programming
Beginner · Specialization · 3 - 6 Months

Vanderbilt University
Skills you'll gain: IntelliJ IDEA, Java Programming, Object Oriented Programming (OOP), Java, Integrated Development Environments, Computer Programming, Open Source Technology, Programming Principles, Distributed Computing, Scalability, Functional Design, Algorithms
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Javascript, Responsive Web Design, Ajax, Front-End Web Development, Bootstrap (Front-End Framework), Web Design, Hypertext Markup Language (HTML), Browser Compatibility, Web Design and Development, Web Development, JSON, Web Applications, Scripting, Usability, Cross Platform Development, Object Oriented Programming (OOP), Event-Driven Programming, User Interface and User Experience (UI/UX) Design
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), User Experience Design, User Interface and User Experience (UI/UX) Design, User Experience, Design Research, Linux Commands, User Centered Design, Debugging, User Interface (UI), UI Components, Software Versioning, Software Visualization, Web Content Accessibility Guidelines, Pseudocode, JavaScript Frameworks, Javascript, Web Applications, Unit Testing, Application Development, API Design
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Application Servers, Java Platform Enterprise Edition (J2EE), Web Servers, Java, Web Applications, Server Side, Data Storage, Session Initiation Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Java, Algorithms, Application Programming Interface (API), Data Structures, Debugging
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Java Programming, Development Environment, Java, Integrated Development Environments, Software Development Tools, Virtual Machines, Encryption, Cryptography, Application Performance Management, Scalability
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Software Design Patterns, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

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

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