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.

Universidad de los Andes
Skills you'll gain: TypeScript, Javascript, Scripting, 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: Jenkins, Artifactory, Apache Maven, CI/CD, DevOps, Devops Tools, Build Tools, Java, GitHub, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Object Oriented Programming (OOP), Javascript, Software Design Patterns, Data Management, Data Structures, Prototyping, Web Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

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: 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: Extensible Markup Language (XML), Extensible Languages and XML, Java, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Data Mapping, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cloud Applications, Cloud-Native Computing, Cloud Development, Google Cloud Platform, Serverless Computing, Infrastructure as Code (IaC), Application Deployment, Application Design, Cloud API, Application Development, API Gateway, Microservices, Authentications, Software Development, Application Programming Interface (API), Cloud Services, Identity and Access Management, 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

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

Skills you'll gain: React.js, Jest (JavaScript Testing Framework), Test Case, Unit Testing, UI Components, Software Testing, Development Testing, Javascript, User Interface (UI), Data Sharing
Intermediate · Course · 1 - 4 Weeks

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