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.

Eindhoven University of Technology
Skills you'll gain: Science and Research, Research Design, Research, Quantitative Research, Experimentation, Sample Size Determination, Data Sharing, Statistical Inference, Statistical Methods, Statistical Analysis, Data Synthesis, R Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Large Language Modeling, Natural Language Processing, LLM Application, Generative AI Agents, Prompt Engineering, Test Case, Agentic systems, User Interface (UI), Artificial Intelligence and Machine Learning (AI/ML), Performance Testing, Debugging, Applied Machine Learning, Artificial Intelligence, Machine Learning Algorithms, Classification Algorithms, Decision Support Systems, Model Evaluation, Performance Tuning
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Data Visualization, Graph Theory, Relational Databases, Data Visualization Software, Data Storytelling, Data Analysis, Social Sciences, Statistical Analysis, Machine Learning, R Programming, Analytical Skills, Sociology, Natural Language Processing, Data Manipulation, Text Mining, Analytics, Social Impact, Statistical Modeling
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Drug Development, Clinical Research, Clinical Trials, Statistical Analysis, Predictive Modeling, R Programming, Data Analysis, Statistical Methods, Health Policy, Data Science, Epidemiology, Healthcare Industry Knowledge, Data Quality, Electronic Medical Record
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Institutional Review Board (IRB), Clinical Trials, Health Policy, Health Disparities, Clinical Research, Clinical Research Ethics, Health Equity, Healthcare Ethics, Public Health, Epidemiology, Good Clinical Practices (GCP), Pre-Clinical Development, Policty Analysis, Research, and Development, Health Care, Medical Science and Research, Policy Development, Community Health, Policy Analysis, Drug Development, Research
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Structures, Python Programming, Programming Principles, User Interface (UI), Computer Programming, Scripting, Software Engineering, Performance Tuning, Scripting Languages, Web Development, Computational Thinking, Debugging, Random Forest Algorithm, Software Development, Web Development Tools
Beginner · Specialization · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Product Lifecycle Management, Innovation, Global Marketing, Business Strategy, New Product Development, Market Analysis, Market Opportunities, Competitive Analysis, Technology Strategies, Strategic Thinking, Risk Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

Goldman Sachs
Skills you'll gain: Market Research, New Product Development, Product Development, Entrepreneurship, Product Design, Innovation, Focus Group, Market Analysis, Ideation, Business Development, Product Testing, Logistics
Mixed · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Generative AI Agents, Agentic systems, LLM Application, Tool Calling
Beginner · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Electrical Power, Power Electronics, Electrical Systems, Torque (Physics), Electronic Components, Electric Power Systems, Electrical Equipment, Basic Electrical Systems, Semiconductors, Electrical Engineering, Mechanical Engineering, Mechanical Design, Electronic Systems, Engineering Calculations, Low Voltage, Electronics, High Voltage, Machine Controls, Energy and Utilities, Thermal Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Pain Management, Wound Care, Blood Collection, Vital Signs, Patient-centered Care, Health Assessment, Infection Control, Clinical Nursing, Patient Treatment, Patient Evaluation, Emergency Nursing, Patient Safety, Health Care, Healthcare Ethics, Patient Positioning, Patient Education And Counseling, Medical Surgical Nursing, Nursing, Healthcare Industry Knowledge, Clinical Nutrition
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Object-Relational Mapping, Java Platform Enterprise Edition (J2EE), Data Access, Data Persistence, Java, Relational Databases, Data Mapping, JUnit, Databases, Query Languages, Enterprise Application Management
Intermediate · Course · 1 - 4 Weeks