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.
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Functional Design, Software Design Patterns, Data Structures, Simulations
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Data Storage Technologies, Network Monitoring, File Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: JSON, NoSQL, Cloud API, Javascript, Data Store, Data Import/Export, Cloud Computing, Software Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Pseudocode, Responsive Web Design, Computational Thinking, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, React.js, HTML and CSS, Debugging, Algorithms, Interviewing Skills, UI Components, JavaScript Frameworks, Web Development Tools, Computer Programming, Web Development, Data Structures, JSON, Javascript, Software Development
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Blockchain, Development Testing, Web Development Tools, Application Development, Computer Programming Tools, Cryptographic Protocols, Javascript
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Blockchain, Web Development Tools, Development Environment, Software Development Tools, Microsoft Development Tools, Program Development, Integrated Development Environments, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Software Development, Javascript, Systems Architecture, Network Architecture
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Web Development, Database Design, Relational Databases, Web Applications, Web Development Tools, Databases, Full-Stack Web Development, Application Deployment, Server Side, HTML and CSS, Back-End Web Development, Application Development, Cloud Applications, Front-End Web Development, JavaScript Frameworks, Web Servers, Scripting, Javascript, Network Protocols, Cloud Computing
Build toward a degree
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Web Content Accessibility Guidelines, User Interface (UI), Usability, Front-End Web Development, UI Components, HTML and CSS, Semantic Web, Cascading Style Sheets (CSS), Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Real Time Data, Dataflow, Data Pipelines, Dashboard, Google Cloud Platform, Data Processing, Data Transformation, Scalability
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Web Services, Extensible Markup Language (XML), Java Platform Enterprise Edition (J2EE), Java, Web Applications
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), React.js, Authentications, Performance Tuning, Scalability, Full-Stack Web Development, Unit Testing, Development Testing, Software Testing, Development Environment, Restful API, Javascript, Python Programming
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Spring Boot, Database Design, Object-Relational Mapping, Application Frameworks, Data Modeling, Database Development, Java Platform Enterprise Edition (J2EE), Application Development, Database Architecture and Administration, Requirements Analysis
Beginner · Guided Project · Less Than 2 Hours