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: User Research, Cascading Style Sheets (CSS), User Experience Design, Design Research, Linux Commands, Unix, Usability, Debugging, User Interface (UI), Software Visualization, Web Content Accessibility Guidelines, Pseudocode, Hypertext Markup Language (HTML), User Interface and User Experience (UI/UX) Design, Javascript, UI Components, Unit Testing, JavaScript Frameworks, Code Reusability, Application Development
★ 4.7 (24K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Java Programming, Programming Principles, Java, Data Structures, Program Development, Object Oriented Programming (OOP), Computer Programming, Application Programming Interface (API), Database Application
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Information Management, Application Programming Interface (API), Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Native, iOS Development, Apple iOS, Software Development Life Cycle, Flutter (Software), Mobile Development, Software Architecture, Android Studio, User Centered Design, Android Development, Swift Programming, Responsive Web Design, Git (Version Control System), GitHub, User Interface (UI) Design, Android (Operating System), Front-End Web Development, Cascading Style Sheets (CSS), Data Ethics, AI Personalization
★ 4.6 (8.4K) · Beginner · Professional Certificate · 3 - 6 Months
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Object Oriented Design, Object Oriented Programming (OOP), Functional Design, Computer Programming, Data Structures, Code Reusability, Computational Logic
★ 4.8 (8.3K) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: HTML and CSS, Ajax, Javascript, Responsive Web Design, Front-End Web Development, Web Design, Web Applications, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Development, Development Environment, Web Development Tools, Web Content Accessibility Guidelines, Semantic Web
★ 4.7 (17K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Access, Object Oriented Design, Relational Databases, Object Oriented Programming (OOP), Database Software, JUnit, Data Integrity, SQL, Database Development, Java, Java Programming, Database Management, Databases
★ 4.6 (39) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Object Oriented Design, Java Programming, Code Reusability, Application Design, Solution Design, Design Strategies, Design Elements And Principles
★ 4.7 (33) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Web Servers, Java Programming, Web Development, Server Side, Application Frameworks, Network Protocols
★ 4.5 (79) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Ajax, Javascript, Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), Web Design, Hypertext Markup Language (HTML), Web Development, Development Environment, Web Development Tools, Web Design and Development, JSON, Web Applications, Web Content Accessibility Guidelines, Browser Compatibility, Object Oriented Programming (OOP), Event-Driven Programming, User Interface and User Experience (UI/UX) Design
★ 4.7 (17K) · Beginner · Specialization · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Git (Version Control System), JUnit, Android Studio, Android Development, Unit Testing, Android (Operating System), Version Control, Maintainability, Software Design Patterns, Test Automation, File I/O, Object Oriented Programming (OOP), Integration Testing, Test Driven Development (TDD), Mobile Development, Development Testing, Software Testing, Testability, Software Engineering, Java Programming
★ 4.5 (3.7K) · Beginner · Specialization · 3 - 6 Months

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