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 Maryland, College Park
Skills you'll gain: Sampling (Statistics), Data Cleansing, Statistical Software, Data Transformation, Data Quality, Statistical Analysis, STATA (Software), Statistical Methods, R (Software), Statistical Modeling, R Programming, Regression Analysis, Data Analysis
Mixed · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Development Environment, Software Development Tools, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Cloud Development, Event-Driven Programming, Development Testing, Javascript
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Regulatory Requirements, Environmental Regulations, Regulation and Legal Compliance, Project Closure, Operations, Operational Analysis, Sustainable Engineering, Plant Operations and Management, Manufacturing Operations, Environment and Resource Management, Manufacturing and Production, Sustainable Development, Material Handling, Environment Health And Safety, Prospecting and Qualification, Environment
Beginner · Course · 1 - 4 Weeks

Universiteit Leiden
Skills you'll gain: Predictive Analytics, Predictive Modeling, Model Evaluation, R Programming, Preventative Care, Health Informatics, Statistical Modeling, Sample Size Determination, Statistical Inference, Regression Analysis, Precision Medicine, Supervised Learning, Data Preprocessing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Customer experience improvement, Information Technology Infrastructure Library, IT Service Management, Service Management, Continuous Improvement Process, Service Improvement, Agile Methodology, Governance, IT Management, Innovation, Customer Service, Process Improvement and Optimization, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Supply Chain, Logistics, Supply Chain Management, Supply Chain Planning, Performance Measurement, Transportation Operations, Operations Management, Sustainable Business, Customer Relationship Building, Corporate Sustainability, Customer Relationship Management, Procurement, Warehouse Management, Supplier Relationship Management, Enterprise Risk Management (ERM), Inventory Control
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Modeling, R Programming, Data Analysis, Data Ethics, Statistical Methods, Regression Analysis, Predictive Modeling, Mathematical Modeling, Machine Learning, Logistic Regression, Statistical Inference, Model Evaluation, Probability Distribution, Linear Algebra, Calculus
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Digital Transformation, Network Infrastructure, Network Architecture, Operational Efficiency, Cloud Infrastructure, General Networking, Cloud-Native Computing, Wireless Networks, Technology Solutions, Emerging Technologies, Virtualization, Distributed Computing, Scalability
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Spring Framework, Java, Dependency Analysis, Maintainability, Object Oriented Programming (OOP), Extensible Markup Language (XML), Software Design, Software Architecture, Testability
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Tidyverse (R Package), Ggplot2, Spatial Data Analysis, Data Visualization Software, Statistical Visualization, Geospatial Information and Technology, Data Manipulation, Scatter Plots, Plotly, Interactive Data Visualization, R Programming, Data Mapping, Animations
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: JSON, Restful API, Web Applications, Application Programming Interface (API), Responsive Web Design, Cascading Style Sheets (CSS), Event-Driven Programming, HTML and CSS, Javascript, Back-End Web Development, Frontend Integration, Web Development, Web Services, Real Time Data, Web Development Tools, Game Design, Hypertext Markup Language (HTML), Servers, Software Development
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: UI/UX Research, User Interface and User Experience (UI/UX) Design, User Experience, User Centered Design, Usability, User Flows, User Interface (UI) Design, Responsive Web Design, Interaction Design, Web Design, Typography, Prototyping, Persona Development
Beginner · Course · 1 - 4 Weeks