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.

Scrimba
Skills you'll gain: JSON, Event-Driven Programming, Javascript, Mobile Development, Data Structures, Object Oriented Programming (OOP), Web Applications, Programming Principles, Data Storage Technologies, Computer Programming, Data Storage, Front-End Web Development, User Interface (UI), Web Development, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Node.JS, API Gateway, MySQL, Restful API, MongoDB, Microservices, API Design, NoSQL, Object-Relational Mapping, Database Design, Relational Databases, Unit Testing, SQL, Databases, Server Side, Application Deployment, Database Management Systems, Javascript, Application Programming Interface (API), Software Documentation
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, JUnit, Object Oriented Programming (OOP), Unified Modeling Language, Software Design Patterns, Software Testing, Software Engineering, Java, Java Programming, Application Design, User Interface and User Experience (UI/UX) Design, Unit Testing, Software Design, Software Architecture, API Design, Model View Controller, Program Development, Software Development, Test Driven Development (TDD), Databases
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Software Documentation, Java, Back-End Web Development, Application Programming Interface (API), Application Deployment, Databases
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: jQuery, Javascript and jQuery, UI Components, Scripting, JavaScript Frameworks, Web Applications, HTML and CSS, Javascript, Web Development Tools, Animations, User Interface (UI) Design
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Microservices, Application Deployment, Software Architecture, Scalability, Service Oriented Architecture, Java Programming, Distributed Computing, Load Balancing, Continuous Deployment, Program Development, Software Design, Maintainability, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), Angular, OAuth, Test Driven Development (TDD), Cryptography, Data Validation, Unit Testing, Vue.JS, Data Security, Authentications, HTML and CSS, Encryption, Authorization (Computing), General Data Protection Regulation (GDPR), Web Applications, JavaScript Frameworks, Javascript, Security Strategy, Computer Programming
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Test Automation, Application Programming Interface (API), Test Case, Restful API, Software Testing, Configuration Management, Java, Software Configuration Management
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Email Automation, Google Workspace, Google Sheets, Stakeholder Communications, Communication Planning, Google Docs, Scripting, Google App Engine, Collaborative Software, Timelines, Project Schedules, Project Management, Web Applications, Javascript, Data Validation
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, JavaScript Frameworks, Pseudocode, Computational Thinking, JSON, Web Development, Web Applications, Data Import/Export, Application Development, Mobile Development, Debugging, Algorithms, Data Structures, Object Oriented Programming (OOP), Node.JS, Unit Testing, React.js, Web Development Tools
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Responsive Web Design, JSON, HTML and CSS, React.js, Jest (JavaScript Testing Framework), Hypertext Markup Language (HTML), Javascript, Bootstrap (Front-End Framework), Ajax, Web Design, Web Development Tools, Web Design and Development, Cascading Style Sheets (CSS), Unit Testing, UI Components, User Interface and User Experience (UI/UX) Design, Web Development, Front-End Web Development, Mobile Development, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months