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.

Northeastern University
Skills you'll gain: Java, Object Oriented Programming (OOP), Data Structures, Java Programming, Object Oriented Design, Event-Driven Programming, Computer Programming, Application Design, Programming Principles, Application Development, File I/O, User Interface (UI), User Interface (UI) Design, Development Environment, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Bootstrap (Front-End Framework), JavaScript Frameworks, UI Components, ASP.NET, HTML and CSS, Cascading Style Sheets (CSS), Application Programming Interface (API), User Interface (UI), Javascript, Web Development Tools, Code Reusability, Network Routing, Event-Driven Programming, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Cascading Style Sheets (CSS), Front-End Web Development, Bootstrap (Front-End Framework), Web Design and Development, jQuery, Web Design, Web Development, Javascript and jQuery, Hypertext Markup Language (HTML), Web Applications, UI Components, User Interface (UI), Animations, Javascript, Event-Driven Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: jQuery, Javascript and jQuery, Event-Driven Programming, Cascading Style Sheets (CSS), Web Development Tools, JavaScript Frameworks, Hypertext Markup Language (HTML), HTML and CSS, Javascript, Data Validation, Development Environment
Beginner · Course · 1 - 3 Months

Skills you'll gain: React.js, HTML and CSS, Frontend Performance, Application Deployment, Web Development, Hypertext Markup Language (HTML), Front-End Web Development, Web Development Tools, Full-Stack Web Development, JavaScript Frameworks, UI Components, Performance Tuning, Cascading Style Sheets (CSS), Javascript, Server Side, GitHub, Version Control, Git (Version Control System)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Big Data, Data Infrastructure, File Systems, Data Processing, Data Storage, Java, Systems Administration, Distributed Computing, File I/O, System Configuration, File Management, Metadata Management, Computing Platforms, Linux Commands
Mixed · Course · 1 - 3 Months

Skills you'll gain: Data Persistence, Object Oriented Programming (OOP), Object Oriented Design, Javascript, Web Applications, Application Programming Interface (API), User Interface (UI), Interactive Design, Front-End Web Development, Event-Driven Programming, Animations
Beginner · Course · 1 - 3 Months

Skills you'll gain: Integrated Development Environments, Application Deployment, Cross Platform Development, Application Development, Development Environment, Computer Programming Tools, Software Development Tools, Java, Build Tools, Java Programming, Apache Maven, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Visualization, Plot (Graphics), Data Visualization Software, Statistical Visualization, Interactive Data Visualization, Visualization (Computer Graphics), Javascript, Data Analysis, Microsoft Visual Studio
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Scalability, Software Design Patterns, Node.JS, Distributed Computing, Dataflow, Data Pipelines, Event-Driven Programming, Object Oriented Design, Software Design, Software Architecture, Performance Tuning, Live Streaming, Real Time Data, Systems Architecture, File I/O, Javascript, Object Oriented Programming (OOP), Systems Design, Maintainability, OS Process Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Unit Testing, Code Review, Software Development Tools, Test Automation, Test Script Development, Software Documentation, Maintainability, Application Development, Generative AI, AI Integrations, Software Development, Computer Programming Tools, Software Technical Review, Jest (JavaScript Testing Framework), Javascript, ChatGPT, GitHub
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Model Context Protocol, Gemini, Node.JS, Google Gemini, AI Workflows, Generative AI Agents, OpenAI API, Prompt Engineering, Agentic Workflows, Retrieval-Augmented Generation, Embeddings, OpenAI, TypeScript, Back-End Web Development, Server Side, Web Applications, API Design, Web Development, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks