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.

University of Pennsylvania
Skills you'll gain: Object Oriented Design, Java, Object Oriented Programming (OOP), Unit Testing, Java Programming, Application Development, Data Structures, Application Design, Software Testing, Test Driven Development (TDD), Computer Programming
★ 4.5 (335) · Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Code Reusability, Java Programming, Java, Program Development, Computer Science, Algorithms, Animations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Java Programming, Spring Framework, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Java Platform Enterprise Edition (J2EE), Computer Programming, Application Frameworks, Software Installation, Virtual Machines, Code Reusability, Web Development, Memory Management
★ 4.6 (2.9K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Java, Java Programming, File Management, Application Development, Computer Programming, Data Management
★ 4.8 (82) · Intermediate · Course · 1 - 3 Months

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

Princeton University
Skills you'll gain: Data Structures, Algorithms, Java, Java Programming
★ 4.9 (12K) · Intermediate · Course · 3 - 6 Months

Skills you'll gain: Cloud Deployment, Apache Spark, Apache Hadoop, Distributed Computing, Big Data, Microservices, Cloud-Native Computing, Cloud Computing Architecture, Scalability, Application Deployment, Amazon CloudWatch, Java Programming, Data Pipelines, Dataflow, Data Processing, Cloud Applications, Cloud Development, Java, Serverless Computing, Application Development
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microservices, Google Cloud Platform, Cloud Applications, Cloud Development, Spring Boot, Database Management, Cloud Deployment, Application Deployment, Configuration Management
★ 4.3 (1.4K) · Intermediate · Course · 1 - 4 Weeks

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

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

Skills you'll gain: Prompt Engineering, Generative AI, Data Ethics, Generative AI Agents, ChatGPT, AI literacy, Restful API, Software Design, AI Integrations, Application Deployment, Software Architecture, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Continuous Integration, Software Development, Java, Development Environment, Machine Learning, Application Security, Java Programming
★ 4.7 (12K) · Intermediate · Specialization · 3 - 6 Months

Edureka
Skills you'll gain: JUnit, Apache Maven, Restful API, Java Programming, Java, Application Deployment, Microservices, Docker (Software), Object Oriented Programming (OOP), Spring Boot, Spring Framework, Containerization, CI/CD, Unit Testing, API Design, Application Programming Interface (API), Hibernate (Java), Computer Programming, Object Oriented Design, Programming Principles
★ 4.2 (36) · Intermediate · Specialization · 1 - 3 Months