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.

Johns Hopkins University
Skills you'll gain: Data Wrangling, Exploratory Data Analysis, Tidyverse (R Package), Data Manipulation, Data Transformation, Data Cleansing, R Programming, Data Preprocessing, Statistical Programming, Text Mining
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Applications, Application Design, Microservices, Google Cloud Platform, Application Development, Cloud API, Cloud Storage, Data Store, Data Storage Technologies, Object-Relational Mapping, Scalability, Node.JS
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsible AI, Microsoft Azure, Artificial Intelligence, Data Ethics, Image Analysis, Natural Language Processing, Computer Vision, Applied Machine Learning, AI Workflows, No-Code Development, Model Deployment, Text Mining, Machine Learning, Model Evaluation
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Object Oriented Programming (OOP), Python Programming, Computer Programming, Development Environment, Software Installation, Scripting, Scripting Languages, Debugging, Program Development, Integrated Development Environments, Data Manipulation
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Mathematical Modeling, Control Systems, Network Model, Mechanical Engineering, Systems Analysis, Automation, Real-Time Operating Systems, Differential Equations, Safety Assurance, Verification And Validation
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Pivot Tables And Charts, Microsoft Excel, R Programming, Alteryx, Dashboard, Statistical Programming, Data Transformation, Tableau Software, Data Cleansing, Data Presentation, Data Visualization Software, Interactive Data Visualization, Debugging, Data Visualization, Automation, Python Programming, Data Structures, Statistical Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Web Content Accessibility Guidelines, Video Production, Instructional Design, Disabilities, Web Content, Learning Strategies, User Centered Design, Technical Documentation, Microsoft Office, Law, Regulation, and Compliance
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: C# (Programming Language), Restful API, Unity Engine, Object Oriented Programming (OOP), .NET Framework, C++ (Programming Language), Video Game Development, ASP.NET, Object-Relational Mapping, Software Engineering, Web Services, Application Development, Software Design Patterns, Database Management, Programming Principles, C (Programming Language)
Beginner · Course · 1 - 4 Weeks
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate · Course · 1 - 4 Weeks

Cinematic Health
Skills you'll gain: Developmental Disabilities, Professionalism, Trauma Care, Healthcare Ethics, Patient Communication, Patient-centered Care, Mental and Behavioral Health, Cultural Responsiveness, Psychiatric And Mental Health Nursing, Substance Abuse, Interpersonal Communications, Active Listening, Nursing Care, Social Skills, Behavior Management, Empathy, Compassion, Communication, Mental Health, Communication Strategies
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Vector Databases, Embeddings, Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Algorithms, Semantic Web, Generative AI Agents, Applied Machine Learning, Unsupervised Learning
Intermediate · Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: LLM Application, Tool Calling, Retrieval-Augmented Generation, Large Language Modeling, Generative AI Agents, AI Workflows, Context Management, Prompt Engineering, Agentic systems, Data Persistence, System Design and Implementation
Intermediate · Project · Less Than 2 Hours