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.

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Web Applications, Javascript, Web Development, Node.JS, Security Controls, Web Servers, Hypertext Markup Language (HTML), Java Programming
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Web Content Accessibility Guidelines, User Interface (UI), Usability, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, UI Components, Semantic Web, Cascading Style Sheets (CSS), Javascript
Intermediate · Guided Project · Less Than 2 Hours

University of Michigan
Skills you'll gain: C++ (Programming Language), C (Programming Language), Object Oriented Programming (OOP), Data Structures, System Programming, Computer Programming, Software Design, Python Programming, Java Programming, Algorithms, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Tensorflow, Google Cloud Platform, Scripting, Artificial Neural Networks, Machine Learning, Supervised Learning, Deep Learning, Cloud Computing, Development Environment
Beginner · Project · Less Than 2 Hours

Scrimba
Skills you'll gain: React.js, Routing Protocols, JavaScript Frameworks, Frontend Performance, Web Content Accessibility Guidelines, UI Components, Debugging, Javascript, Context Management, User Flows, Authentications, Data Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Jenkins, CI/CD, Apache Tomcat, Apache Maven, Docker (Software), Continuous Integration, Application Lifecycle Management, Shell Script, Continuous Deployment, Application Deployment, Devops Tools, DevOps, Continuous Delivery, Solution Delivery, Command-Line Interface, Git (Version Control System), Systems Integration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Pseudocode, Computational Thinking, Debugging, Algorithms, Programming Principles, Front-End Web Development, Javascript, Computer Programming, Data Structures, Web Development
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, SQL, Database Management, Data Access, Databases, Database Systems, Java, Java Programming, JUnit
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Validation, Hypertext Markup Language (HTML), Verification And Validation, Javascript, Web Applications
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Middleware, Node.JS, Model View Controller, Development Environment, Application Frameworks, Application Development, Restful API, TypeScript, Web Applications, Web Development Tools, Application Programming Interface (API), Server Side, Network Routing, Javascript, Android Development, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Software Documentation, Application Design, Software Testing, Performance Tuning, Data Persistence
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, System Monitoring, System Requirements, Business Reporting, Verification And Validation
Beginner · Course · 1 - 4 Weeks