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: Apache Maven, Eclipse (Software), JUnit, Data Import/Export, Kotlin, Software Installation, Database Management, File Management
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Spring Framework, Spring Boot, Model View Controller, Hibernate (Java), Java, Web Applications, Object-Relational Mapping, Application Deployment, Application Security, Database Application, Software Development Tools, Authentications, Development Environment, Authorization (Computing)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Application Programming Interface (API), Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), OAuth, Back-End Web Development, Eclipse (Software)
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React.js, 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, Performance Tuning, Encryption, Authorization (Computing), Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AWS Identity and Access Management (IAM), Linux Administration, Amazon Elastic Compute Cloud, Linux Servers, Cloud Deployment, Cloud Infrastructure, Amazon Web Services, Cloud Hosting, Front-End Web Development, Cloud Computing, Cloud Management, Linux, Ubuntu, Operating System Administration, Application Deployment, React.js, Event-Driven Programming, Javascript, User Interface (UI), Apache
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Version Control, Unity Engine, GitHub, Bitbucket, Git (Version Control System), Android Development, C# (Programming Language), Android (Operating System), Game Design, Mobile Development, Scripting, User Interface (UI), 3D Assets, Video Game Development, Animation and Game Design, User Interface (UI) Design, Computer Graphics, Application Development, Graphics Software, Animations
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Ajax, jQuery, JSON, Extensible Markup Language (XML), Web Applications, Javascript, Web Services, Event-Driven Programming, HTML and CSS
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, Artifactory, Apache Maven, CI/CD, DevOps, Build Tools, Software Configuration Management, Java, GitHub, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Web Design, Web Design and Development, Event-Driven Programming, Development Environment, Web Development, Scripting, User Interface and User Experience (UI/UX) Design, Web Applications, Programming Principles, Animations, Typography, Color Theory, Web Analytics and SEO, Debugging, Data Validation
Beginner · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Data Persistence, Event-Driven Programming, 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