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.

Skills you'll gain: Node.JS, Web Development, HTML and CSS, Front-End Web Development, Web Servers, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Applications, JavaScript Frameworks, Server Side, Javascript, Middleware, Back-End Web Development
Intermediate · Guided Project · Less Than 2 Hours

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: TypeScript, Code Reusability, React.js, Javascript, Software Design Patterns
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Jenkins, CI/CD, Continuous Integration, Continuous Deployment, DevOps, Application Deployment, Continuous Delivery, Spring Framework, Build Tools, Version Control
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: CI/CD, Jenkins, Docker (Software), Continuous Integration, Containerization, Cloud-Native Computing, Scalability, Application Deployment, Cloud Deployment, Continuous Deployment, Spring Framework, Spring Boot, DevOps, Prometheus (Software), Amazon CloudWatch, AWS Identity and Access Management (IAM), Identity and Access Management, Load Balancing, OAuth, Performance Tuning
Advanced · Course · 1 - 4 Weeks

University of London
Skills you'll gain: JSON, Restful API, Javascript, Application Programming Interface (API), Web Services, Hypertext Markup Language (HTML), Front-End Web Development, Data Structures
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, API Design, Software Development, AI Integrations
Build toward a degree
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: Data Structures, Javascript, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: IntelliJ IDEA, Integrated Development Environments, Software Development Tools, Version Control, Git (Version Control System), GitHub, Development Environment, Program Development, Debugging, Scripting Languages, Visualization (Computer Graphics), Databases, Database Management, Relational Databases, Scripting
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React.js, UI Components, Front-End Web Development, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Spark, Data Pipelines, Distributed Computing, Real Time Data, Data Integration, Apache Hadoop, Security Controls, Configuration Management, Data Processing, Scala Programming, Authorization (Computing), Authentications
Intermediate · Course · 1 - 4 Weeks