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.

Coursera
Skills you'll gain: Web Development Tools, Data Structures, Javascript, Data Access, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Web Applications, React.js, Javascript and jQuery, Javascript, Cascading Style Sheets (CSS)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Spring Framework, Spring Boot, Model View Controller, Hibernate (Java), Java, Java Programming, Web Development, Web Applications, Object-Relational Mapping, Application Deployment, Application Security, Database Application, Software Development Tools, Authentications, Development Environment, Data Access, Authorization (Computing)
Intermediate · Course · 3 - 6 Months

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

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Unified Modeling Language, Software Design, Java, Java Programming, Software Architecture, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, API Design, Software Development, Diagram Design
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: UI Components, JavaScript Frameworks, Web Frameworks, Event-Driven Programming, Vue.JS, React.js, Code Reusability, Data Import/Export, Web Applications, Application Frameworks, Front-End Web Development, Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Version Control, Unity Engine, GitHub, Bitbucket, Android Development, C# (Programming Language), Game Design, Mobile Development, Video Game Development, Software Versioning, Scripting, User Interface (UI), 3D Assets, Animation and Game Design, User Interface (UI) Design, UI Components, Computer Graphics, Program Development, Graphics Software, Animations
Beginner · Specialization · 3 - 6 Months
University of Glasgow
Skills you'll gain: Computational Thinking, Code Review, Program Development, Software Technical Review, Graphics Software, Visualization (Computer Graphics), Animation and Game Design, Computer Graphics, Programming Principles, Animations, Javascript, Computer Programming, Interactive Design, Event-Driven Programming
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Spring Framework, Hibernate (Java), Java Programming, Spring Boot, Java, Object-Relational Mapping, Database Management, Application Frameworks, Data Access, Apache Maven, SQL, Object Oriented Programming (OOP), Data Persistence, Functional Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Javascript, Object Oriented Programming (OOP), Web Development, Scripting, Cascading Style Sheets (CSS), Data Validation, Prototyping, Programming Principles, Computational Logic, Code Reusability, Development Environment
Beginner · Course · 3 - 6 Months

Skills you'll gain: React.js, Front-End Web Development, Javascript, Web Development, Software Engineering
Intermediate · Guided Project · Less Than 2 Hours