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 Minnesota
Skills you'll gain: Software Testing, JUnit, Verification And Validation, Unit Testing, Test Case, Test Automation, Development Testing, Test Planning, Test Tools, White-Box Testing, Code Coverage, Software Quality Assurance, Functional Testing, Test Script Development, Systems Development Life Cycle, Test Data, Technical Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Object Oriented Design, Programming Principles, File I/O, Data Import/Export, Debugging, File Management, Memory Management
Beginner · Course · 3 - 6 Months

Skills you'll gain: COBOL (Programming Language), Prompt Patterns, Prompt Engineering, Code Review, Code Reusability, Application Lifecycle Management, CI/CD, Agentic systems, Software Technical Review
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Frontend Integration, CI/CD, Jenkins, Docker (Software), Spring Boot, Continuous Integration, Configuration Management, Containerization, Cloud-Native Computing, Scalability, Software Documentation, Application Deployment, Java, API Design, Java Programming, API Gateway, Back-End Web Development, JUnit, Application Programming Interface (API), React.js
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: C# (Programming Language), ASP.NET, Full-Stack Web Development, .NET Framework, Back-End Web Development, CI/CD, Microsoft Azure, Docker (Software), Web Development, Containerization, Application Deployment, PostgreSQL, Object Oriented Programming (OOP), Cloud Infrastructure, Database Management, Web Development Tools, Database Design, API Design, GitHub, Middleware
Intermediate · Specialization · 1 - 3 Months

Heriot-Watt University
Skills you'll gain: Database Systems, Database Management, Database Software, Artificial Intelligence, Graph Theory, Software Engineering, Database Development, Java Programming, Requirements Analysis, Artificial Intelligence and Machine Learning (AI/ML), Database Architecture and Administration, Statistical Methods, NoSQL, Computational Logic, Software Design, Data Structures, Algorithms, Administration, Computer Science, Performance Measurement
Earn a degree
Degree · 1 - 4 Years

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, Code Reusability, Maintainability, Software Design, Application Development, Computer Programming, Data Import/Export, Data Management, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Performance Tuning, Frontend Performance, OS Process Management, Server Side, Performance Testing, Management Consulting
Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Claude Code, Prompt Engineering, Anthropic Claude, AI Security, Generative AI Agents, Software Development Tools, Software Development, Responsible AI, GitHub, Code Review, Application Deployment, AI Personalization, Generative AI, Software Engineering, Web Development, Artificial Intelligence, Design Software, React.js, Front-End Web Development, Javascript
Beginner · Specialization · 3 - 6 Months
STARWEAVER
Skills you'll gain: Open Web Application Security Project (OWASP), Application Security, Secure Coding, Threat Modeling, Application Design, IT Security Architecture, DevSecOps, OAuth, Security Engineering, AI Security, Security Architecture Review, Cyber Engineering, Security Requirements Analysis, Application Programming Interface (API), Authentications, Security Testing, AI Integrations, NIST 800-53, Python Programming, Javascript
Intermediate · Course · 1 - 4 Weeks
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Application Design, Software Design, Software Design Patterns, Functional Design, Other Programming Languages, Event-Driven Programming, Functional Testing, Java, Programming Principles, Performance Tuning, Data Structures, Algorithms
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Development, Javascript, Event-Driven Programming, Computer Programming
Beginner · Course · 1 - 4 Weeks