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.

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Design, Object Oriented Programming (OOP), Data Structures, Code Reusability, Java Programming, Java, Program Development, File I/O, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations, Simulations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Event-Driven Programming, Interactive Data Visualization, Java, Java Programming, Object Oriented Programming (OOP), User Interface (UI), Object Oriented Design, Computer Programming, User Interface (UI) Design, Algorithms, Software Engineering, Geospatial Mapping, Programming Principles, Software Documentation
★ 4.7 (5.8K) · Intermediate · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Data Structures, Algorithms, Graph Theory, Java, Performance Testing, Java Programming, Computational Thinking, Memory Management, Spatial Data Analysis
★ 4.9 (12K) · Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Apache Maven, Spring Framework, Microservices, Java Platform Enterprise Edition (J2EE), Spring Boot, Java, Java Programming, Build Tools, Back-End Web Development, Software Architecture, Server Side, Load Balancing, Cloud Development, Restful API, Web Applications, Scalability
★ 4.5 (52) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Game Theory, Java, Java Programming, Programming Principles, Performance Tuning, Computational Thinking, Theoretical Computer Science, Computer Programming, Problem Solving, Solution Design, Applied Mathematics, Geometry
Intermediate · Specialization · 3 - 6 Months

Heriot-Watt University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Computer Programming, Application Development, Program Development, Programming Principles, Computational Logic, Software Development, Software Development Life Cycle, Debugging
★ 5 (6) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: JUnit, File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Java, Unit Testing, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Application Development, Authentications, Code Reusability, Android Development, Application Design, Debugging, Performance Tuning
★ 4.6 (84) · Beginner · Specialization · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Data Persistence, Software Design Patterns, Maintainability, Memory Management, Programming Principles, OS Process Management, Code Reusability, Functional Design, Computer Programming, Oracle Databases, File Systems, Computational Logic, API Design, Data Structures, Software Design, Data Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Java Programming, Java, Integrated Development Environments, Mobile Development, Computer Programming, Programming Principles, Data Structures
★ 4.4 (180) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Restful API, Application Deployment, Microservices, Docker (Software), Spring Boot, Spring Framework, Containerization, CI/CD, API Design, Application Programming Interface (API), Java Programming, Hibernate (Java), Back-End Web Development, Systems Architecture, Java, Software Architecture, Software Design, Authentications, Software Development, IntelliJ IDEA
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: JUnit, Apache Maven, Java Programming, Java, Unit Testing, Software Design Patterns, Test Automation, Build Tools, Software Design, Data Access, Maintainability, Software Testing, IntelliJ IDEA, SQL, Computer Programming, Programming Principles, Object Oriented Programming (OOP), Software Engineering, Software Development, Design Strategies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Test Script Development, Data Structures, Java Programming, Algorithms, Software Testing, Java, Test Automation, Software Development, Scalability
★ 4 (62) · Beginner · Course · 1 - 4 Weeks