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: Cascading Style Sheets (CSS), Debugging, Search Engine Optimization, jQuery, PHP (Scripting Language), Hypertext Markup Language (HTML), MySQL, WordPress, Keyword Research, Web Applications, Application Programming Interface (API), Web Development, Content Management Systems, Web Design and Development, Linux Commands, DevOps, Javascript, Application Deployment, Content Optimization, Program Development
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Webpack, Object Oriented Programming (OOP), Object Oriented Design, Full-Stack Web Development, JSON, Web Development Tools, Javascript, Event-Driven Programming, HTML and CSS, Application Programming Interface (API), Application Deployment, Web Applications, Web Development, Kanban Principles, Code Reusability, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Browser Compatibility, Programming Principles, Data Persistence
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Amazon Elastic Compute Cloud, Amazon Web Services, Cloud Hosting, Front-End Web Development, React.js, Cloud Deployment, Javascript, Full-Stack Web Development, Web Applications, Cloud Security, Hypertext Markup Language (HTML), Remote Access Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Web Services, Java, Cascading Style Sheets (CSS), Data Mapping, Browser Compatibility, Data Validation, Memory Management
★ 4.4 (12) · Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Model Context Protocol, Vector Databases, Agentic Workflows, Tool Calling, Agentic systems, AI Workflows, Google Gemini, AI Orchestration, Server Side, Gemini, Generative AI Agents, Embeddings, Node.JS, Retrieval-Augmented Generation, Large Language Modeling, Web Development, PostgreSQL, Data Processing, Data Modeling, Javascript
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Applications, Web Development, Web Development Tools, HTML and CSS, JavaScript Frameworks, OAuth, UI Components, Frontend Integration, Front-End Web Development, Authentications, React.js, Development Environment, Javascript, Software Installation, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Test Tools, Unit Testing, Development Testing, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Application Development, Debugging, Software Configuration Management, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing
Advanced · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Algorithms, Java, Java Programming, Programming Principles, Computer Programming, Performance Tuning, Computational Thinking, Theoretical Computer Science, Solution Design
Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Automation, Google Sheets, Scripting, Google Workspace, Scripting Languages, Spreadsheet Software, Productivity Software, Automation, Hypertext Markup Language (HTML), Data Access, HTML and CSS, Javascript, Supplier Relationship Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Merchandising, E-Commerce, Web Applications, Scalability, Business Technologies, Technology Solutions, Application Frameworks, Application Development, Systems Integration, Javascript
Beginner · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: Design and Product, Model View Controller, Debugging, Software Design, User Interface and User Experience (UI/UX) Design, User Interface (UI), UI Components, Web Applications, Algorithms, Web Design and Development, JSON, Program Development, User Story, Javascript, Automation, Hypertext Markup Language (HTML), Data Structures
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Git (Version Control System), React.js, Version Control, GitHub, Debugging, Software Development Tools, Node.JS, Development Environment, Collaborative Software, Program Development, Development Testing, Software Testing, Software Versioning, Unit Testing, Maintainability, Application Deployment, Build Tools, Server Side, Scripting, Javascript
Intermediate · Course · 1 - 4 Weeks