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.

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unified Modeling Language, JUnit, Software Testing, Java, Java Programming, Unit Testing, Software Design, Software Development, Test Driven Development (TDD), Diagram Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design and Development, Java Platform Enterprise Edition (J2EE), jQuery, Data Validation, Web Applications, Scripting Languages, Javascript and jQuery, Web Development, Hypertext Markup Language (HTML), Middleware, Model View Controller, Javascript, Interoperability, Java, Cascading Style Sheets (CSS), Computer Graphic Techniques, Scalability
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Java Programming, Java Platform Enterprise Edition (J2EE), JUnit, Software Documentation, Application Frameworks, Development Environment, Application Design, Software Testing, Performance Tuning, Data Persistence, Maintainability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud-Native Computing, Cloud Applications, Cloud Development, API Gateway, Cloud API, Google Cloud Platform, Application Programming Interface (API), Cloud-Based Integration, Authentications, Serverless Computing, Identity and Access Management, API Design, Event-Driven Programming, Node.JS, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, Data Validation, Package and Software Management, User Interface (UI), Database Application, Java Programming, Development Environment, Java, Data Modeling, Application Development, User Interface (UI) Design, Verification And Validation, Data Persistence, Data Integrity, Transaction Processing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Applications, Cloud Development, Cloud-Native Computing, Google Cloud Platform, Cloud API, Application Development, Data Store, Cloud Hosting, Cloud Storage, Cloud Services, Software Development, Data Storage, Cloud Platforms
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Selenium (Software), Jenkins, Test Script Development, CI/CD, Continuous Integration, Test Automation, Apache Maven, Software Configuration Management, DevOps, Continuous Delivery, Systems Administration, Devops Tools, Scripting, Scalability, Context Management, Role-Based Access Control (RBAC), Distributed Computing
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Video Game Development, Game Design, Program Development, Web Development Tools, Software Development, Software Development Tools, Computer Programming Tools, Development Environment, Software Documentation, Data Validation, Javascript, Debugging, Integrated Development Environments, Maintainability, Programming Principles, Data Structures, Code Reusability, Software Design, Computer Programming, Object Oriented Programming (OOP)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Authorization (Computing), JavaScript Frameworks, Application Programming Interface (API), TypeScript, Javascript, Web Development
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Email Automation, Scripting, Google Workspace, Gmail, Web Development Tools, Javascript, Scripting Languages, Google Cloud Platform, Spreadsheet Software, Web Development, Computer Programming
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Code Reusability
Beginner · Course · 1 - 4 Weeks