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), Performance Tuning, Data Structures, Code Reusability, Other Programming Languages, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, GitHub Copilot, Vibe coding, Computer Programming, IntelliJ IDEA, Code Reusability, Data Structures, Programming Principles, Program Development, Development Environment, Integrated Development Environments, Spring Boot, Computer Programming Tools, Code Review, Software Installation, Application Deployment, Back-End Web Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: File I/O, Object Oriented Programming (OOP), Java, Integrated Development Environments, Object Oriented Design, Java Programming, Development Environment, Maintainability, Computer Programming Tools, Software Development Tools, Software Design, Data Structures, Program Development, Data Persistence, Software Architecture, Debugging, Memory Management, Code Reusability, Programming Principles, File Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: JSON, Web Development Tools, Jest (JavaScript Testing Framework), Javascript, Object Oriented Programming (OOP), Web Development, Software Testing, Data Structures, Programming Principles, Front-End Web Development, Unit Testing, Event-Driven Programming, Code Reusability, Web Applications, Node.JS, Software Engineering, Computational Logic, Debugging
★ 4.7 (5K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Deployment, Software Development Life Cycle, OpenShift, Istio, Kubernetes, Node.JS, Software Architecture, Application Deployment, Restful API, Database Design, CI/CD, Cloud-Native Computing, NoSQL, Git (Version Control System), Cloud Applications, Javascript, Front-End Web Development, Ajax, Azure DevOps, Software Development
★ 4.6 (9.7K) · Beginner · Professional Certificate · 3 - 6 Months

Duke University
Skills you'll gain: Debugging, Bioinformatics, Java, Algorithms, Java Programming, Program Development, Object Oriented Design, Programming Principles, Statistical Analysis, Software Design, Computer Programming, File I/O, Data Processing, Software Documentation, Data Manipulation, Object Oriented Programming (OOP), Data Analysis, Descriptive Statistics, Web Scraping, Problem Solving
★ 4.6 (8.1K) · Beginner · Course · 1 - 3 Months

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, Test Case, Application Development, Cryptographic Protocols, Code Reusability, Application Design, Debugging, Performance Tuning
★ 4.6 (85) · Beginner · Specialization · 1 - 3 Months

EDUCBA
Skills you'll gain: JUnit, Test Automation, Unit Testing, Java Programming, Java, Test Script Development, Object Oriented Design, File I/O, Verification And Validation, Test Tools, Software Testing, Test Execution Engine, Development Testing, Quality Assurance, Software Quality Assurance, System Testing, Computer Programming, Application Development, Test Case, Application Design
★ 4.9 (20) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Apache Maven, Java, Object Oriented Design, Build Tools, Memory Management, Hibernate (Java), Unit Testing, File I/O, Data Persistence, Docker (Software), Software Testing, Software Design Patterns, Integrated Development Environments, Object-Relational Mapping, Functional Design, Maintainability
Beginner · Specialization · 3 - 6 Months

Meta
Skills you'll gain: Mobile Development, React.js, UI Components, Mobile Development Tools, Webpack, Front-End Web Development, Application Development, Dataflow, Code Reusability, Hypertext Markup Language (HTML), User Interface (UI), Event-Driven Programming, Cascading Style Sheets (CSS), Javascript, Development Environment
★ 4.7 (2.6K) · Beginner · Course · 1 - 4 Weeks

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: Integrated Development Environments, Development Environment, Java Programming, Computer Programming Tools, Software Development Tools, Program Development, Java, Debugging, Programming Principles, Code Reusability, Software Installation, Computer Programming, Object Oriented Programming (OOP), Computational Thinking, Data Structures, Computational Logic
Beginner · Course · 1 - 4 Weeks