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.

Skills you'll gain: Restful API, Application Programming Interface (API), Authentications, Test Automation, JSON, Security Testing, Authorization (Computing), Java Programming, Scenario Testing, Java, Test Tools, Back-End Web Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Java Programming, Java, OS Process Management, Memory Management, Data Sharing
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Embedded Software, C (Programming Language), Embedded Systems, Debugging, Peripheral Devices, Memory Management, Integrated Development Environments, Computer Programming Tools, Development Environment, System Programming, Software Development Tools, Program Development, Hardware Architecture, Systems Architecture, Eclipse (Software), Data Structures, Build Tools, C and C++, Programming Principles, Microarchitecture
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: React.js, Debugging, Front-End Web Development, Web Development, JavaScript Frameworks, HTML and CSS, UI Components, Javascript, Cascading Style Sheets (CSS)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Ajax, Javascript, Data Structures, Debugging, JSON, Web Development, Web Applications, Cascading Style Sheets (CSS), Computer Programming, HTML and CSS, Event-Driven Programming, Software Development, Git (Version Control System), Hypertext Markup Language (HTML), Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

University of New Mexico
Skills you'll gain: Middleware, Application Frameworks, Web Applications, Model View Controller, Web Frameworks, Version Control, Web Development Tools, Agile Software Development, Git (Version Control System), Software Engineering, Data Store, Web Design and Development, Web Development, Software Development, Agile Methodology, Database Development, User Interface (UI), Back-End Web Development, Ruby on Rails, Javascript
Mixed · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Software Testing, Testability, Test Case, White-Box Testing, Behavior-Driven Development, Code Coverage, Test Engineering, Functional Testing, Test Automation, JUnit, Requirements Analysis, Java Programming
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Development Tools, Browser Compatibility, Front-End Web Development, Application Deployment, Web Design and Development, Web Development, Computer Programming Tools, Animations, Development Environment, Software Development Tools, UI Components, Javascript, Maintainability, User Interface (UI)
Beginner · Specialization · 3 - 6 Months

Advanced · Course · 1 - 4 Weeks

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Object Oriented Programming (OOP), Software Design Patterns, Object Oriented Design, Java, Code Reusability, Java Programming, Software Design, Test Driven Development (TDD)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java Programming, Java, Data Management, Secure Coding, Theoretical Computer Science, Performance Tuning, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Mobile Development, Web Applications, Web Design and Development, Program Development, ChatGPT, GitHub, Front-End Web Development, Javascript, Application Deployment, Responsive Web Design, Video Game Development, Git (Version Control System), AI Integrations, Cascading Style Sheets (CSS), Database Development, Computer Programming, Database Application, Machine Learning
Beginner · Course · 1 - 3 Months