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.

Northeastern University
Skills you'll gain: Java, Object Oriented Programming (OOP), Data Structures, Java Programming, Object Oriented Design, Event-Driven Programming, Computer Programming, Application Design, Programming Principles, Application Development, File I/O, User Interface (UI), UI Components, User Interface (UI) Design, Development Environment, Code Reusability, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Color Theory, Javascript, Web Design and Development, Front-End Web Development, Program Development, Programming Principles, Computer Programming, Web Development, Data Validation
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Salesforce Development, Salesforce, No-Code Development, UI Components, Data Migration, Process Modeling, Data Import/Export, Application Frameworks, Process Driven Development, Business Logic
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Model Context Protocol, Gemini, Node.JS, Google Gemini, AI Workflows, Generative AI Agents, OpenAI API, Prompt Engineering, Agentic Workflows, Retrieval-Augmented Generation, Embeddings, OpenAI, TypeScript, Back-End Web Development, Server Side, Web Applications, API Design, Web Development, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vector Databases, Web Design and Development, AI Personalization, Web Development, Web Applications, HTML and CSS, Natural Language Processing, Data Store, Embeddings, Javascript, Database Management, LLM Application, Persona (User Experience), Real Time Data, Generative AI Agents
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Spring Framework, Web Applications, Java Platform Enterprise Edition (J2EE), Application Frameworks, Java Programming, Object Oriented Design, Back-End Web Development, Authentications, Application Development, Software Design, Database Design, Model View Controller, Databases, Extensible Markup Language (XML), Data Access
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, Cloud Deployment, Application Deployment, Google Cloud Platform, Cloud Applications, Key Management, System Configuration, Software Configuration Management, Application Development, Java
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Javascript, Application Programming Interface (API), Computer Programming, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Web Development Tools, Development Environment, FinTech, Software Development Tools, Transaction Processing, Web Development, Programming Principles, Program Development, Web Applications, Node.JS, Scalability, Other Programming Languages, Javascript, Application Deployment, Computer Programming, Market Dynamics, Verification And Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Javascript, JavaScript Frameworks, Event-Driven Programming, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Model Training, Java Programming, Java, Feature Engineering, Statistical Machine Learning, Machine Learning Algorithms, Model Optimization, Deep Learning, Data Pipelines
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Spring Framework, Cloud-Native Computing, Software Architecture, Microservices, Spring Boot, Cloud Applications, Software Design Patterns, Event-Driven Programming, Java Programming, Restful API, Performance Tuning, MongoDB, Application Programming Interface (API), Web Applications, Scalability, Functional Design, Resilience, Integration Testing, Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks