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.

Scrimba
Skills you'll gain: JSON, UI Components, Application Deployment, Data Import/Export, Code Reusability, Web Frameworks, Web Design and Development, Front-End Web Development, Web Development Tools, Full-Stack Web Development, Web Development, HTML and CSS, Frontend Performance, Content Management, Cascading Style Sheets (CSS), Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Color Theory, Web Design, Responsive Web Design, HTML and CSS, AI powered creativity, ChatGPT, Hypertext Markup Language (HTML), Web Design and Development, Vibe coding, Web Content, Web Development, Generative AI, Cascading Style Sheets (CSS), Development Environment, Javascript, Web Presence, Prompt Engineering, Software Development Tools, Back-End Web Development, Software Installation
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Object Oriented Design, Data Structures, Code Reusability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Event-Driven Programming, Javascript, Application Programming Interface (API), Game Design, Restful API, Software Development
Intermediate · Course · 1 - 4 Weeks

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

Edureka
Skills you'll gain: TypeScript, Object Oriented Design, Object Oriented Programming (OOP), Programming Principles, Software Design, Computer Programming, Code Reusability, Debugging, Maintainability, Software Development, Javascript, Web Development Tools, Web Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Event-Driven Programming, Web Development, HTML and CSS, Scripting, Web Applications, Hypertext Markup Language (HTML), Programming Principles, Front-End Web Development, Interactive Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Web Development Tools, HTML and CSS, Web Development, Javascript, Web Applications, Web Design and Development, Cascading Style Sheets (CSS), Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Apache Kafka, Apache Spark, Scala Programming, Real Time Data, Apache Hadoop, Apache Cassandra, Applied Machine Learning, Big Data, Data Processing, Application Deployment, Distributed Computing, Programming Principles, Cloud Deployment, Data Structures, Development Environment
Advanced · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Behavior-Driven Development, Gherkin (Scripting Language), Test Script Development, Unit Testing, Software Testing, Jenkins, CI/CD, Continuous Integration, Test Tools, Apache Maven, Automation, Test Case, Software Configuration Management, DevOps, Java, C# (Programming Language), Java Programming, Python Programming
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Real Time Data, Apache Spark, Apache Kafka, Data Integration, AWS Kinesis, Apache Hive, Data Pipelines, Big Data, Applied Machine Learning, Systems Design, System Design and Implementation, Distributed Computing, Query Languages, Data Processing, NoSQL, MongoDB, Data Import/Export, SQL, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Java, Test Automation, System Testing, Object Oriented Programming (OOP), Continuous Delivery, Test Script Development, Software Testing, Integration Testing, Build Tools, Browser Compatibility
Intermediate · Course · 3 - 6 Months