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.

Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, React.js, Spring Framework, Object-Relational Mapping, Frontend Integration, Restful API, YAML, Data Access, Database Application, Data Persistence, Web Applications, JavaScript Frameworks, Databases, Application Performance Management, Development Environment, Configuration Management, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, JUnit, Object Oriented Programming (OOP), Software Design Patterns, Software Engineering, Java, Unified Modeling Language, Software Design, Java Programming, Software Architecture, Model View Controller, Programming Principles, Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Integrated Development Environments, Web Applications, HTML and CSS, Python Programming, Javascript, Design
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Java Platform Enterprise Edition (J2EE), Maintainability, Scalability, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Software Design, IntelliJ IDEA, Object Oriented Programming (OOP), Object Oriented Design, Software Architecture, Java, Java Programming, Integrated Development Environments, Development Environment, Data Structures, Command-Line Interface, Data Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Build Tools, Authorization (Computing), Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Application Deployment, Integrated Development Environments, Development Testing, Web Development Tools, Program Development, Cryptographic Protocols, Javascript, Scripting
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, Continuous Deployment, Application Deployment, Cloud Deployment, Web Applications, UI Components, Javascript, Bootstrap (Front-End Framework), JavaScript Frameworks, Development Environment, User Interface (UI), Cascading Style Sheets (CSS), Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Skills you'll gain: AWS Identity and Access Management (IAM), Linux Administration, Amazon Elastic Compute Cloud, Linux Servers, Identity and Access Management, Cloud Hosting, Cloud Deployment, Cloud Infrastructure, Amazon Web Services, Cloud Computing, Front-End Web Development, Cloud Management, Linux, Ubuntu, UI Components, Application Deployment, React.js, Event-Driven Programming, Javascript, Apache
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: TypeScript, Object Oriented Design, Node.JS, Role-Based Access Control (RBAC), Object Oriented Programming (OOP), Webpack, React Redux, Back-End Web Development, React.js, Full-Stack Web Development, Web Development, MongoDB, Front-End Web Development, Javascript, Application Programming Interface (API), Software Design Patterns, API Design, Programming Principles, Software Development, Debugging
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Vue.JS, JavaScript Frameworks, Hypertext Markup Language (HTML), Web Development Tools, Web Applications, Front-End Web Development, HTML and CSS, Javascript, Microsoft Visual Studio, Data Storage
Intermediate · Guided Project · Less Than 2 Hours