Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. 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: Data Structures, Algorithms, Java, Performance Testing, Computer Programming, Java Programming, Theoretical Computer Science, Object Oriented Programming (OOP)
Intermediate · Course · 3 - 6 Months

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Java Programming, Java, Program Development, File I/O, Computational Thinking, Computer Science, Algorithms, Animations, Debugging
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Development, HTML and CSS, Web Design and Development, Javascript, Front-End Web Development, Web Content, Responsive Web Design, Web Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Apache Maven, Build Tools, Software Configuration Management, Continuous Integration, Integrated Development Environments, Java Programming, Dependency Analysis, Automation, Java, Product Lifecycle Management, Software Versioning
Intermediate · Course · 1 - 3 Months
Coursera
Skills you'll gain: Classification And Regression Tree (CART), Decision Tree Learning, Classification Algorithms, Java, Java Programming, Machine Learning Algorithms, Supervised Learning, Algorithms, Machine Learning, Data Structures, Software Engineering
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Software Development Life Cycle, Object Oriented Programming (OOP), Java Programming, Java, Program Development, Software Development, Development Environment, Integrated Development Environments, Computer Programming, Software Engineering, Programming Principles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OAuth, Microservices, Spring Boot, Containerization, Apache Kafka, Software Testing, Data Store, Docker (Software), Kubernetes, Unit Testing, Authentications, Integration Testing, Software Architecture, Security Testing, Event-Driven Programming, Restful API, Software Design Patterns, Java Programming, Role-Based Access Control (RBAC), Java
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Program Development, Bioinformatics, Data Storage, Development Testing, Theoretical Computer Science, Computational Thinking, Network Analysis, Test Case, Programming Principles, Computer Programming, Python Programming, C and C++, Java, Rust (Programming Language), Javascript, Software Testing, Debugging
Intermediate · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Data Structures, Algorithms, Data Storage, Programming Principles, Computer Programming, C++ (Programming Language), Java Programming, Java, File Management
Intermediate · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Java, Mobile Development, Object Oriented Programming (OOP), Android (Operating System), Mockups, Java Programming, Application Deployment, Application Design, Application Development, Mobile Development Tools, Software Design Patterns, JSON, Prototyping, User Interface (UI) Design, Application Lifecycle Management, User Interface (UI), Program Development, Instagram
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Project Management Life Cycle, Change Management, Project Management, Project Coordination, Organizational Structure, Generative AI Agents, Project Planning, Agile Methodology, Waterfall Methodology, Strategic Thinking, Interpersonal Communications
Beginner · Course · 1 - 4 Weeks