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.

University of London
Skills you'll gain: JSON, Restful API, Ajax, Javascript, Web Development Tools, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Analysis, Brand Awareness, AI Enablement, Storytelling, Content Development and Management, Multimedia, Prompt Engineering, Data Storytelling, Creativity, Search Engine Optimization, Emerging Technologies, Visionary, Professional Networking
Beginner · Course · 1 - 3 Months

Skills you'll gain: Analytics, Big Data, Scalability, Responsible AI, Complex Problem Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Testing, Application Security, Open Web Application Security Project (OWASP), Software Testing, Secure Coding, Test Tools, Regression Testing, Unit Testing, Penetration Testing, Security Controls, Computer Security, Test Driven Development (TDD), Debugging, User Acceptance Testing (UAT), Computer Programming, Python Programming, Node.JS, Information Privacy, JavaScript Frameworks, Javascript
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: MLOps (Machine Learning Operations), Model Deployment, Responsible AI, Power BI, Microsoft Azure, Image Analysis, Data Visualization Software, Machine Learning, Medical Imaging, Predictive Analytics, Azure Synapse Analytics, Model Evaluation, Health Informatics, Artificial Intelligence, Applied Machine Learning, Data Preprocessing, Computer Vision, Feature Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Graphics, Visualization (Computer Graphics), C# (Programming Language), .NET Framework, Graphical Tools, Animations, Animation and Game Design, Image Analysis, User Interface (UI), User Interface (UI) Design, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Bootstrap (Front-End Framework), HTML and CSS, User Interface (UI), Front-End Web Development, Responsive Web Design, JavaScript Frameworks, Web Design, Web Development, Web Applications, Hypertext Markup Language (HTML), Full-Stack Web Development, Cascading Style Sheets (CSS), Back-End Web Development, React.js
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Data Persistence, Application Design, Application Programming Interface (API), JSON, Typography
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Email Marketing, Marketing Analytics, Campaign Management, Marketing Automation, Web Analytics, Web Content, Account Management, Dashboard, Customer Data Management, Automation, Content Management, Configuration Management
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Retrieval-Augmented Generation, Model Deployment, LangChain, Performance Tuning, AI Workflows, Generative AI, LangGraph, Embeddings, Prompt Engineering, Large Language Modeling, Vector Databases, Data Preprocessing, Scalability, Model Evaluation
Beginner · Course · 1 - 4 Weeks

AI CERTs
Advanced · Course · 1 - 3 Months

Skills you'll gain: Angular, Application Design, Software Architecture, Software Design Patterns, Frontend Performance, JavaScript Frameworks, TypeScript, Scripting Languages, UI Components, Javascript, Application Performance Management, Data Sharing, Real Time Data
Beginner · Course · 3 - 6 Months