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: Database Design, Frontend Integration, Continuous Integration, Restful API, Database Development, Docker (Software), Model View Controller, Front-End Web Development, Relational Databases, Databases, Web Design and Development, User Story, CI/CD, Java, Java Programming, Database Application, Full-Stack Web Development, Spring Boot, Back-End Web Development, Software Design Documents
★ 4 (11) · Advanced · Course · 1 - 3 Months

Peking University
Skills you'll gain: Java Programming, Java, Program Development, Programming Principles, Computer Programming, Maintainability, Database Development, Object Oriented Programming (OOP), JUnit, Database Application, UI Components, C and C++, Data Access, Object Oriented Design, User Interface (UI), Application Development, Event-Driven Programming, File I/O, Data Structures
★ 4.7 (210) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Development Environment, Programming Principles, Data Structures
★ 4.4 (94) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: CI/CD, Integration Testing, Continuous Integration, Docker (Software), Java, Cloud Deployment, Containerization, Software Design Patterns, Microservices, Build Tools, Cloud-Native Computing, Object Oriented Design, Software Design, Functional Design
★ 4.8 (13) · Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Software Development
★ 4.9 (20) · Beginner · Course · 1 - 3 Months

JetBrains
Skills you'll gain: Kotlin, Java Programming, Java, IntelliJ IDEA, Android Development, Mobile Development, Object Oriented Programming (OOP), Integrated Development Environments, Functional Design, Interoperability, Computer Programming, Programming Principles, Scripting, Unit Testing, Software Development, Development Environment, Code Review
★ 4.7 (2.1K) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Java, Data Structures, File I/O, Java Programming, Data Access, Data Cleansing
★ 4.6 (20) · Intermediate · Guided Project · Less Than 2 Hours

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: Restful API, Application Security, Java Programming, Application Frameworks, Model View Controller, Development Environment, Web Applications, Application Programming Interface (API), Apache Maven, Authorization (Computing), Authentications
★ 4.4 (38) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Object-Relational Mapping, Java, Application Servers, Middleware, Application Deployment, Data Persistence, Event-Driven Programming, Enterprise Application Management, Data Access, Code Reusability, Context Management, Database Management, Business Logic
★ 4.8 (60) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Java Programming
★ 4.3 (163) · Advanced · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Java, Object Oriented Design, Java Programming, Code Reusability, Object Oriented Programming (OOP), Data Structures, Computer Programming, User Interface (UI), UI Components, Programming Principles, Algorithms, Program Development, Debugging
★ 4.6 (300) · Beginner · Course · 1 - 3 Months