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.

Skills you'll gain: Lean Six Sigma, Process Mapping, Process Improvement, Process Analysis, Business Process, Continuous Improvement Process, Waste Minimization, Statistical Analysis, Quality Management, Operational Efficiency, Statistical Process Controls, Root Cause Analysis, Data-Driven Decision-Making, Customer experience improvement, Business Metrics
Beginner · Course · 1 - 4 Weeks

The University of Chicago
Skills you'll gain: Education and Training, Teaching, Public History, Higher Education, Social Studies, Common Core Standards, Economics, Policy, and Social Studies, Public Policies, Policy Analysis, Program Evaluation, Political Sciences, Research, Governance, Socioeconomics
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Microsoft Azure, Virtual Machines, Cloud Infrastructure, Network Security, Virtualization and Virtual Machines, Cloud Computing, Cloud Management, Firewall, Infrastructure Security, Cloud Security, Cloud Platforms, Cloud Storage, Virtual Networking
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Core Data (Software), JSON, Apple iOS, Data Persistence, Database Application, Mobile Development, Application Programming Interface (API), Data Access, Swift Programming, Model View Controller, Data Modeling, UI Components, Network Protocols, User Interface (UI), Debugging
Advanced · Course · 1 - 4 Weeks

Packt
Skills you'll gain: LangChain, Prompt Engineering, LLM Application, LangGraph, OpenAI API, Generative AI Agents, Agentic systems, AI Workflows, Large Language Modeling, Hugging Face, OpenAI, ChatGPT, Embeddings, Artificial Intelligence and Machine Learning (AI/ML), Development Environment, Application Development, Program Development, Retrieval-Augmented Generation, Artificial Intelligence, Data Processing
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Apple iOS, Model View Controller, Core Data (Software), User Interface (UI) Design, UI Components, Responsive Web Design, Mobile Development, Human Computer Interaction, UI/UX Strategy, Data Mapping, Animations, Storyboarding
Mixed · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Visualization, Surveys, Tidyverse (R Package), Data Analysis, Demography, Public Administration, Policy Analysis, Public Policies, R Programming, Statistical Programming, Data Transformation, Data Cleansing, Data Manipulation
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Data Warehousing, Supervised Learning, Data Pipelines, Data Preprocessing, Classification Algorithms, Data Modeling, Decision Tree Learning, Data Management, Machine Learning Algorithms, Data Cleansing, Model Evaluation, Exploratory Data Analysis, Statistical Analysis, Machine Learning, Big Data, Analytical Skills, Data Analysis
Build toward a degree
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Tidyverse (R Package), Rmarkdown, R Programming, Ggplot2, Data Import/Export, Data Visualization, Data Manipulation, Data Visualization Software, Data Analysis, Data Science, Data Storytelling, Statistical Analysis, Relational Databases, Data Cleansing, Data Transformation, Statistical Programming, Data Integration, Software Installation, Programming Principles, Communication
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: React.js, Routing Protocols, UI Components, JavaScript Frameworks, Frontend Performance, Front-End Web Development, Performance Tuning, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Jest (JavaScript Testing Framework), Web Development Tools, Interaction Design, Debugging, Javascript, Application Performance Management, Web Frameworks, Data Management
Intermediate · Specialization · 3 - 6 Months

Starweaver
Skills you'll gain: Active Listening, Non-Verbal Communication, Business Writing, Concision, Social Skills, Writing, Cultural Sensitivity, Persuasive Communication, Interpersonal Communications, Responsible AI, Emotional Intelligence, Technical Writing, Google Gemini, Anthropic Claude, Communication Strategies, Communication, Technical Documentation, Stakeholder Engagement, Marketing Communications, Media and Communications
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Model Deployment, MLOps (Machine Learning Operations), Microsoft Azure, Azure DevOps, Artificial Intelligence and Machine Learning (AI/ML), Application Deployment, Data Pipelines, Data Preprocessing, CI/CD, Continuous Monitoring, Debugging, Identity and Access Management, Version Control, Data Storage, Scalability
Intermediate · Course · 1 - 3 Months