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.

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, Java, Object Oriented Programming (OOP), Java Programming, Data Persistence, Application Deployment, JSON, Web Services, Mockups, Application Design, Mobile Development Tools, Restful API, Application Development, Software Design Patterns, Kotlin, User Interface (UI) Design, Prototyping, Instagram
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, Apache Maven, API Testing, Test Script Development, Restful API, Test Automation, JSON, Scalability, Test Case, Test Data, Authentications, Java
Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Network Routing, Network Architecture, Network Planning And Design, Computer Networking, System Programming, Data Integrity
Intermediate · Course · 1 - 3 Months

Meta
Skills you'll gain: Jest (JavaScript Testing Framework), React.js, Web Development Tools, Web Applications, Event-Driven Programming, JavaScript Frameworks, Application Programming Interface (API), Application Development, UI Components, Unit Testing, Front-End Web Development, Software Design Patterns, Context Management, Cascading Style Sheets (CSS), Javascript, Hypertext Markup Language (HTML), Debugging
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Cascading Style Sheets (CSS), Bootstrap (Front-End Framework), Wireframing, Front-End Web Development, User Interface (UI) Design, Browser Compatibility, Usability, Web Content Accessibility Guidelines, Mobile Development Tools, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, CI/CD, Continuous Integration, Version Control, Git (Version Control System), Java, Data Validation, Application Development, Object Oriented Programming (OOP), Software Architecture, Data Modeling
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI Agents, AI Orchestration, LLM Application, OpenAI API, Java Programming, AI Workflows, Agentic systems, Generative AI, Prompt Patterns, Prompt Engineering, Large Language Modeling, Document Management, Secure Coding, Business Logic, Open Web Application Security Project (OWASP), Middleware, Plan Execution, Software Design Patterns, Persona Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Behavior-Driven Development, Gherkin (Scripting Language), Test Script Development, Unit Testing, Software Testing, Jenkins, CI/CD, Continuous Integration, Test Tools, Apache Maven, Automation, Regression Testing, Test Case, DevOps, Java, C# (Programming Language), Java Programming, Python Programming
Beginner · Specialization · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Distributed Computing, Big Data, Data Manipulation, Data Processing, Performance Tuning, Data Transformation, SQL
Intermediate · Course · 1 - 4 Weeks
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Software Design, Software Design Patterns, Functional Design, Event-Driven Programming, Java, Programming Principles, Performance Tuning, Data Structures, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Tool Calling, Large Language Modeling, OpenAI API, LLM Application, Prompt Patterns, Multimodal Prompts, OpenAI, AI Orchestration, AI Enablement, Spring Framework, Generative AI, Image Analysis, Embeddings, Spring Boot, Vector Databases, JSON, Real Time Data
Intermediate · Course · 3 - 6 Months