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: Data Visualization Software, Data Visualization, Interactive Data Visualization, Visualization (Computer Graphics), JSON, Data Mapping, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: TypeScript, Javascript, Scripting Languages, Data Structures, Web Development Tools, Object Oriented Programming (OOP), Programming Principles, Functional Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Algorithms, Computer Programming, Computational Thinking, Program Development, Technical Design, Debugging, Problem Solving, Performance Tuning
Intermediate · Course · 3 - 6 Months

Skills you'll gain: JUnit, Unit Testing, Software Quality Assurance, Integrated Development Environments, Software Testing, Quality Assurance, Java, Software Development Tools, Debugging, Performance Testing
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Git (Version Control System), Version Control, Integrated Development Environments, Eclipse (Software), Application Lifecycle Management, Release Management, Collaborative Software, Code Review
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Applications, Cloud-Native Computing, Cloud Development, Google App Engine, Serverless Computing, Google Cloud Platform, Microservices, Application Deployment, Application Development, Application Performance Management, Infrastructure as Code (IaC), Cloud API, API Gateway, Authentications, Platform As A Service (PaaS), Application Programming Interface (API), Kubernetes, Cloud Storage, Cloud Computing, Debugging
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Cybersecurity, Metasploit, Cyber Attacks, Application Security, Exploitation techniques, Security Awareness, Malware Protection, Vulnerability Assessments, Javascript, Web Servers
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Applications, Front-End Web Development, Semantic Web, Javascript, Web Content Accessibility Guidelines, Data Storage Technologies, Application Security, User Interface (UI), Data Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Ajax, JSON, Application Programming Interface (API), Javascript, Event-Driven Programming, Data Validation, Web Development, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Virtual Machines, Cloud API, Web Servers, Natural Language Processing, Live Streaming
Intermediate · Project · Less Than 2 Hours

Vanderbilt University
Skills you'll gain: Event-Driven Programming, Computer Programming, Distributed Computing, Computer Science, Computational Thinking, Computer Networking, Data Structures, Natural Language Processing, Algorithms, Problem Solving, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Skills you'll gain: TypeScript, React.js, UI Components, Javascript, Software Design Patterns
Advanced · Guided Project · Less Than 2 Hours