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.

Board Infinity
Skills you'll gain: React.js, Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), JavaScript Frameworks, Web Design and Development, UI Components, Programming Principles, Javascript, HTML and CSS, Web Applications, Event-Driven Programming, Web Development, User Interface (UI), Maintainability
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Apache Kafka, Prometheus (Software), Performance Metric, Data Processing, Network Monitoring, Transaction Processing, Event Monitoring, Configuration Management, Network Troubleshooting, Network Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Scripting, Google Workspace, Gmail, Web Development Tools, Javascript, Scripting Languages, Google Cloud Platform, Spreadsheet Software, Web Development, Computer Programming
Beginner · Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Automation, Test Tools, Test Script Development, Unit Testing, Software Testing, Performance Testing, Quality Assurance, Performance Stress Testing, IT Automation, Performance Tuning, Scripting, Debugging, Network Performance Management, Simulations
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, User Interface (UI), HTML and CSS, Front-End Web Development, Web Development Tools, Web Design and Development, User Interface and User Experience (UI/UX) Design, Bootstrap (Front-End Framework), React.js, Web Development, Web Design, Javascript, Cascading Style Sheets (CSS), UI Components, JavaScript Frameworks, Hypertext Markup Language (HTML), Semantic Web
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Cucumber (Software), Behavior-Driven Development, JSON, Gherkin (Scripting Language), Restful API, Application Programming Interface (API), Test Tools, Test Case, Test Planning, Software Testing, Test Engineering, Security Testing, Test Script Development, Code Coverage, Test Data, Test Automation, Apache Maven, Authentications, Development Environment
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Angular, JavaScript Frameworks, Model View Controller, Javascript, Web Development, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: Public Cloud, Big Data, Data Infrastructure, Apache Hadoop, Apache Spark, Data Architecture, Cloud Computing Architecture, Cloud Platforms, Cloud Services, Data Processing, Distributed Computing, Cloud Computing, Scalability, Data Storage Technologies, NoSQL, Cloud Storage, File Systems, Data Storage
Beginner · Course · 1 - 3 Months

Skills you'll gain: Continuous Integration, CI/CD, Application Deployment, Node.JS, Continuous Delivery, Test Automation, Git (Version Control System), Software Development, Continuous Deployment, GitHub, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: JSON, Javascript, JavaScript Frameworks, Software Testing, Unit Testing, Scripting, Frontend Performance, Event-Driven Programming, Hypertext Markup Language (HTML), Scripting Languages, Data Validation, Data Structures, Network Protocols, Verification And Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Jenkins, Test Script Development, CI/CD, Continuous Integration, Test Automation, Apache Maven, DevOps, Automation, Systems Administration, Scripting, Scalability, Web Applications, Role-Based Access Control (RBAC), Distributed Computing
Intermediate · Course · 1 - 4 Weeks