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: React.js, JavaScript Frameworks, Javascript and jQuery, Javascript, Software Design Patterns, Code Reusability, Web Development, Application Development, Mobile Development
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Azure DevOps, Cloud Services, Cloud API, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Javascript, Software Design Patterns, Data Management, Data Structures, Web Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Model Context Protocol, Agentic systems, Vector Databases, Retrieval-Augmented Generation, Prompt Engineering, Tool Calling, Google Gemini, Agentic Workflows, AI Workflows, Generative AI Agents, AI Orchestration, Server Side, Node.JS, MongoDB, Embeddings, Large Language Modeling, Natural Language Processing, Web Development, Machine Learning, Javascript
Beginner · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: UI Components, React.js, Javascript, JavaScript Frameworks
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Model View Controller, Web Applications, JavaScript Frameworks, Data Validation, Application Frameworks, Javascript, Application Development, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Node.JS, JSON, Server Side, Web Development Tools, Back-End Web Development, JavaScript Frameworks, Web Servers, Application Programming Interface (API), Restful API, Javascript, Web Development, Package and Software Management, Servers, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Frontend Integration, Spring Boot, Configuration Management, API Gateway, JUnit, Java Programming, Enterprise Application Management, Java, Test Tools, Unit Testing, Application Programming Interface (API), Development Testing, Software Design Patterns, Authentications
Advanced · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: C# (Programming Language), Restful API, Unity Engine, Application Programming Interface (API), Object Oriented Programming (OOP), API Design, .NET Framework, Object Oriented Design, C++ (Programming Language), Video Game Development, ASP.NET, Computer Programming, Object-Relational Mapping, Web Services, Application Development, Game Design, Software Design Patterns, Database Management, Program Development, Programming Principles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Web Design and Development, UI Components, Web Language, Front-End Web Development, Mobile Development, Javascript, Animations, User Interface (UI), Web Development Tools, Web Content Accessibility Guidelines, Typography, Semantic Web, GitHub, Version Control, Application Deployment, Development Environment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Test Script Development, Unit Testing, Test Case, Development Testing, Test Tools, React.js, API Testing, Software Testing, Web Development Tools, Javascript
Intermediate · Guided Project · Less Than 2 Hours

SkillUp
Skills you'll gain: GitHub Copilot, Prompt Engineering, AI Workflows, AI Integrations, Generative AI, ChatGPT, Software Architecture, Code Review, AI literacy, Software Design, API Design, Debugging, Software Development, Application Development, AI Security, Python Programming, Automation, Version Control, Java Programming
Intermediate · Specialization · 3 - 6 Months