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: Apache Kafka, Command-Line Interface, Apache, Data Pipelines, Java, Enterprise Application Management, Real Time Data, Performance Tuning, Configuration Management
Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: TypeScript, Javascript, React.js, Debugging, Integrated Development Environments, Web Development Tools
Intermediate · Guided Project · Less Than 2 Hours
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Functional Design, Software Design Patterns, Data Structures, Simulations
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Object Oriented Design, Java, Software Architecture, Object Oriented Programming (OOP), Data Structures, Software Design, Computer Programming, Programming Principles, Application Development, Unified Modeling Language, UI Components
Mixed · Course · 1 - 3 Months

Skills you'll gain: Angular, Development Environment, Program Development, JavaScript Frameworks, Javascript, Front-End Web Development, Model View Controller, UI Components, Web Development
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: jQuery, Javascript, Web Applications, Data Structures
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Test Tools, Selenium (Software), Test Driven Development (TDD), Unit Testing, Acceptance Testing, Performance Testing, Functional Testing, Test Automation, Usability Testing, Application Programming Interface (API), User Interface (UI), Test Case, API Design, Javascript
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Spring Framework, Java, Dependency Analysis, Software Design Patterns, Object Oriented Programming (OOP), Extensible Markup Language (XML), Software Design, Software Architecture
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Javascript, JavaScript Frameworks, Web Development, Application Development, Web Applications, JSON, Event-Driven Programming, Object Oriented Programming (OOP), Programming Principles, Computer Programming, Software Engineering, Functional Design, Computer Science
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: TypeScript, Data Structures, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Northeastern University
Skills you'll gain: Software Architecture, Java Programming, User Interface (UI), Object Oriented Programming (OOP), Data-Driven Decision-Making, Business Modeling, Test Data, Software Development, Application Development, Artificial Intelligence, Data Structures
Mixed · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Data Storage Technologies, Network Monitoring, File Management
Intermediate · Course · 1 - 4 Weeks