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.

Universitat Politècnica de València
Skills you'll gain: Sustainable Architecture, Systems Thinking, Architectural Engineering, Sustainable Systems, Architectural Design, Sustainable Design, Building Design, Architecture and Construction, Civil and Architectural Engineering, Sustainable Development, Landscape Architecture, Environmental Engineering, Sustainable Engineering, Structural Analysis, Environmental Regulations, Policty Analysis, Research, and Development, Environment and Resource Management, Materials science, Thermal Management
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Spring Framework, Software Architecture, Microservices, Spring Boot, Cloud Applications, Event-Driven Programming, Java Programming, Restful API, Performance Tuning, MongoDB, Web Applications, Scalability, Real Time Data, Resilience, Integration Testing, Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Ajax, jQuery, JSON, Extensible Markup Language (XML), Web Applications, Javascript, Web Development Tools, Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IntelliJ IDEA, Debugging, Software Design, User Interface (UI), Integrated Development Environments, Java, Program Development, Application Design, Object Oriented Programming (OOP), User Interface (UI) Design, Data Validation, Software Development
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Cleansing, Data Manipulation, Data Integration, R Programming, Data Preprocessing, Tidyverse (R Package), Data Management
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Prompt Engineering, Amazon Bedrock, Retrieval-Augmented Generation, Generative AI, Model Evaluation, Embeddings, Model Deployment
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Software Documentation, Maintainability, Programming Principles, Software Design, Python Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unit Testing, Code Review, Software Development Tools, Test Automation, Software Documentation, Maintainability, Web Applications, Application Development, Generative AI, Software Development, Jest (JavaScript Testing Framework), Javascript, ChatGPT, GitHub
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Prompt Engineering, LLM Application, AI Workflows, AI Orchestration, No-Code Development, OpenAI API, Tool Calling, Generative AI Agents, Vector Databases, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Design Thinking, Usability, User Interface (UI) Design, UI Components, Interactive Design, Application Design, Python Programming, Application Development, Event-Driven Programming
Mixed · Course · 1 - 4 Weeks

Adobe
Skills you'll gain: Photo Editing, Adobe Photoshop, Data Import/Export, Image Quality, Color Theory, Photography, Generative AI, Editing, Storytelling, Design Elements And Principles, Graphic and Visual Design, Creative Design, Creative Thinking, Creative Problem-Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Debugging, Git (Version Control System), C# (Programming Language), .NET Framework, Development Environment, Integrated Development Environments, Program Development, Microsoft Development Tools, Software Development Tools, Configuration Management
Beginner · Course · 1 - 3 Months