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: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Test Automation, Test Case, Software Development, Scalability
★ 4 (64) · 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

Vanderbilt University
Skills you'll gain: Prompt Engineering, ChatGPT, Prompt Patterns, Generative AI Agents, LLM Application, AI literacy, Agentic Workflows, AI Orchestration, OpenAI API, AI Enablement, Java, Java Programming, AI powered creativity, Agentic systems, Generative AI, Artificial Intelligence, Large Language Modeling, AI Workflows, Tool Calling, AI Integrations
★ 4.8 (8.1K) · Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Hypertext Markup Language (HTML)
★ 4.5 (46) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Object Oriented Design, Software Development Tools, Computer Programming Tools, Code Reusability, Software Installation, Linux Commands
★ 4.8 (6) · Intermediate · Specialization · 1 - 3 Months

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

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

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 (84) · Beginner · Specialization · 1 - 3 Months

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

Board Infinity
Skills you'll gain: Spring Framework, Model View Controller, Java Platform Enterprise Edition (J2EE), Application Performance Management, Software Design Patterns, Java Programming, Java, Enterprise Architecture, Enterprise Application Management, Secure Coding, Software Design, System Monitoring, Security Controls, Software Architecture, Application Security, Application Frameworks, Web Applications, OS Process Management, Memory Management, Data Sharing
★ 3.9 (14) · Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Responsible AI, MLOps (Machine Learning Operations), Data Preprocessing, Model Deployment, Data Ethics, Artificial Intelligence and Machine Learning (AI/ML), Apache Mahout, AI Security, Applied Machine Learning, Classification Algorithms, CI/CD, Java, Java Programming, Machine Learning Software, Jenkins, Deep Learning, Machine Learning, Spring Boot, Natural Language Processing, Reinforcement Learning
Intermediate · Specialization · 1 - 3 Months

Rice University
Skills you'll gain: Java Programming, Dataflow, Java, Distributed Computing, Programming Principles, Application Frameworks, Algorithms, Performance Tuning, Functional Design, Scalability
★ 4.6 (1.2K) · Intermediate · Course · 1 - 3 Months