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.

Board Infinity
Skills you'll gain: Object-Relational Mapping, Java Programming, Database Design, Authentications, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Apache Maven, Build Tools, Continuous Integration, Version Control, Java, Software Versioning, Package and Software Management, Mac OS, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud-Native Computing, Cloud Applications, Cloud Development, Google App Engine, Google Cloud Platform, Serverless Computing, Application Deployment, Cloud Deployment, Application Performance Management, Application Design, Infrastructure as Code (IaC), Cloud API, Data Store, Application Development, API Gateway, Microservices, Authentications, Cloud Storage, Cloud Computing, Debugging
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: JavaScript Frameworks, Event-Driven Programming, Javascript, Frontend Performance, Frontend Integration, Object Oriented Programming (OOP), Video Game Development, Web Development, Scripting, Development Environment, Cascading Style Sheets (CSS), Front-End Web Development, Data Validation, Real Time Data, Prototyping, Data Integrity, Programming Principles, Computational Logic, Data Storage, Code Reusability
Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Apache Hadoop, File Systems, Big Data, File I/O, Data Infrastructure, Java, Data Storage Technologies, Java Programming, Data Persistence, Infrastructure Architecture, File Management, Data Processing, Distributed Computing, Data Storage, Development Environment, Scalability
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Software Design Patterns, Computational Thinking, Software Design, Algorithms, Program Development, Theoretical Computer Science, Software Development, Computer Programming, Problem Solving, Software Engineering, Data Structures, Computer Science, Javascript, Programming Principles, Web Development, Graph Theory, Machine Learning Methods, Data Science, Solution Design
Intermediate · Specialization · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Vibe coding, AI Workflows, Software Development Tools, Generative AI Agents, Code Review, Software Development, Software Engineering, AI Personalization, GitHub, Web Development Tools, Design Software, Responsible AI, Generative AI, Web Development, Front-End Web Development, Javascript, Application Deployment, React.js, Artificial Intelligence
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Javascript, Web Design and Development, HTML and CSS, Web Development Tools, Event-Driven Programming, Data Validation, Hypertext Markup Language (HTML), Programming Principles, Scripting Languages, Computer Programming, Verification And Validation, Event Monitoring, Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Automation, Test Script Development, Software Testing, Javascript, Browser Compatibility, Scripting, Automation, Web Development Tools, Test Tools, Test Case, Cascading Style Sheets (CSS), File I/O, Software Installation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TypeScript, React.js, Javascript, Debugging, Integrated Development Environments, Context Management
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Front-End Web Development, Web Development, HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Design, Scripting, Javascript
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Kotlin, Android Jetpack, Cross Platform Development, Mobile Development, Cloud Deployment, Android Development, Mobile Development Tools, Code Reusability, Back-End Web Development, UI Components, Server Side, Google Cloud Platform, Cloud Development, Frontend Integration, MongoDB, Interoperability, User Interface (UI), Web Applications, Systems Integration, Restful API
Intermediate · Course · 1 - 4 Weeks