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: React Native, Android Studio, Restful API, Version Control, User Research, UI/UX Research, Usability Testing, Jest (JavaScript Testing Framework), Git (Version Control System), Data Structures, Kotlin, Unix Commands, Android Jetpack, Android Development, Persona (User Experience), GitHub, Interaction Design, Mobile Development, Code Reusability, Javascript
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: SQL, Database Management, Database Development, Databases, Relational Databases, Database Application, Database Design, Query Languages, Data Access, Java, Java Programming, UI Components, User Interface (UI), Transaction Processing, Event-Driven Programming, Software Development
Beginner · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Algorithms, Data Structures, Java, Java Programming, Other Programming Languages
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Command-Line Interface, Application Deployment, Build Tools, Service Oriented Architecture, Package and Software Management, Dependency Analysis, Service Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Functional Design, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Database Design, SQL, MySQL, HTML and CSS, PHP (Scripting Language), Relational Databases, JSON, Database Management, jQuery, Hypertext Markup Language (HTML), Javascript and jQuery, Ajax, Databases, Data Modeling, Database Application, Database Development, Debugging, Web Applications, Query Languages, Javascript
Intermediate · Specialization · 3 - 6 Months

Meta
Skills you'll gain: React Native, iOS Development, Core Data (Software), Restful API, Version Control, User Research, UI/UX Research, Usability Testing, Apple iOS, Jest (JavaScript Testing Framework), Data Structures, Swift Programming, User Interface (UI), Unix Commands, Apple Xcode, Git (Version Control System), Persona (User Experience), GitHub, Mobile Development, Javascript
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Security Strategy, Security Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Exploitation techniques, Java, Security Controls, Java Programming, Patch Management, Dependency Analysis, Docker (Software), JSON
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Transaction Processing, File I/O, Data Access, Dataflow, Data Persistence, Database Management, Stored Procedure, SQL, Data Integrity, Data Import/Export, Databases, Secure Coding, File Systems
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Eclipse (Software), Java, Integrated Development Environments, Java Programming, Code Reusability, Functional Design
Intermediate · Guided Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Server Side, Data Access, Apache Tomcat, Application Servers, Java Programming, Relational Databases, Databases, Java, Web Servers, SQL, Authentications, Web Applications, Secure Coding, Software Design Patterns, Data Persistence
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Java Programming, Java, Data Persistence, Object Oriented Programming (OOP), File Systems, Software Design, File Management, Data Management
Advanced · Course · 1 - 3 Months