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: Responsive Web Design, User Interface (UI) Design, Web Development Tools, User Interface (UI), Web Design and Development, HTML and CSS, User Interface and User Experience (UI/UX) Design, Front-End Web Development, Web Design, Cascading Style Sheets (CSS), JavaScript Frameworks, Javascript, Bootstrap (Front-End Framework), Web Frameworks, React.js, Web Development, Hypertext Markup Language (HTML), Semantic Web
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Cloud Hosting, Web Development, Cloud Deployment, Responsive Web Design, Web Design, Web Presence, Application Deployment, Typography, Servers, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Spring Framework, Microservices, Cloud Deployment, API Design, Spring Boot, OAuth, Java Programming, System Design and Implementation, Application Design, Java, Systems Design, Service Oriented Architecture, Systems Architecture, Web Design and Development, Sprint Planning, NoSQL, SQL, Databases, Product Management
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: User Interface (UI), Bootstrap (Front-End Framework), Blockchain, User Interface (UI) Design, JavaScript Frameworks, Front-End Web Development, Debugging, Frontend Integration, Full-Stack Web Development, Animations, Web Applications, Javascript, Test Script Development
Advanced · Course · 1 - 3 Months

Skills you'll gain: Docker (Software), Containerization, Kubernetes, Development Environment, Spring Boot, Application Deployment, DevOps, Microservices, YAML, Debugging, MongoDB, Restful API
Beginner · Course · 1 - 3 Months

Skills you'll gain: Exploitation techniques, Penetration Testing, Secure Coding, Web Applications, Full-Stack Web Development, Vulnerability Assessments, Application Security, Angular, Ajax, Javascript
Intermediate · Course · 1 - 3 Months

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

Scrimba
Skills you'll gain: Javascript, Cross Platform Development, Web Applications, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Context Management, Event-Driven Programming, Web Applications, JavaScript Frameworks, UI Components, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Javascript, Programming Principles, Computational Logic, Computer Programming, Web Development, Application Development
Beginner · Guided Project · Less Than 2 Hours