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.

University of Alberta
Skills you'll gain: Model View Controller, Software Design Patterns, Software Design, Unified Modeling Language, Object Oriented Design, Code Review, Software Architecture, Programming Principles, Maintainability, Java, Application Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Tool Calling, Large Language Modeling, OpenAI API, LLM Application, Prompt Patterns, Multimodal Prompts, OpenAI, AI Orchestration, AI Enablement, Spring Framework, Generative AI, Image Analysis, Embeddings, Spring Boot, Vector Databases, JSON, Real Time Data
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Data Import/Export, Data Analysis, Exploratory Data Analysis, Java, Data Processing, Data Manipulation, Java Programming, Statistics
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Ajax, Java Programming, Test Script Development, Java, Software Testing, Test Automation, Scripting, Web Development Tools, Object Oriented Programming (OOP), Automation, Debugging
Intermediate · Course · 3 - 6 Months

Vanderbilt University
Skills you'll gain: Generative AI Agents, AI Orchestration, LLM Application, OpenAI API, Java Programming, AI Workflows, Agentic systems, Generative AI, Prompt Patterns, Prompt Engineering, Large Language Modeling, Document Management, Secure Coding, Business Logic, Open Web Application Security Project (OWASP), Middleware, Plan Execution, Software Design Patterns, Persona Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Server Side, Application Development, Data Modeling
Beginner · Course · 1 - 4 Weeks

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

Packt
Skills you'll gain: Node.JS, Application Deployment, JavaScript Frameworks, Web Frameworks, Test Driven Development (TDD), Cloud Deployment, Authentications, Web Development, Development Testing, Full-Stack Web Development, Web Applications, Application Security, Javascript, CI/CD, Data Persistence, MongoDB, Restful API, Event-Driven Programming, Back-End Web Development, Front-End Web Development
Beginner · Course · 3 - 6 Months

Skills you'll gain: Responsive Web Design, React.js, HTML and CSS, Front-End Web Development, Web Development, Web Design, Javascript, Restful API, UI Components
Beginner · Course · 3 - 6 Months

Skills you'll gain: Vue.JS, JavaScript Frameworks, Web Development Tools, Front-End Web Development, Javascript, UI Components, Data Structures, Debugging
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Node.JS, React Redux, Restful API, Database Design, Ajax, Database Application, Databases, Full-Stack Web Development, Server Side, NoSQL, Back-End Web Development, Front-End Web Development, Javascript, React.js, Performance Tuning, API Design, Data Structures, MongoDB, Debugging, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months