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: Bash (Scripting Language), Shell Script, Unix Shell, Scripting, Linux Commands, Windows PowerShell, Linux, IT Automation, Unix Commands, Unix, Debugging, Automation, Remote Access Systems, Command-Line Interface, Ubuntu, Development Environment, System Monitoring, Data Structures, Restful API, File Management
Intermediate · Course · 3 - 6 Months

Skills you'll gain: TypeScript, React Redux, React.js, Application Programming Interface (API), Web Development Tools, Front-End Web Development, UI Components, JavaScript Frameworks, Build Tools, Event-Driven Programming, Data Validation, Javascript, Web Development, Software Development, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Statistical Hypothesis Testing, Statistical Inference, R (Software), Statistical Reporting, Data Analysis, Statistical Analysis, R Programming, Statistical Methods, Probability & Statistics, Quantitative Research, Sampling (Statistics), Probability Distribution
Beginner · Course · 1 - 3 Months

Skills you'll gain: Databases, Data Manipulation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language)
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Data Storytelling, Plotly, Statistical Visualization, Interactive Data Visualization, Matplotlib, Data Visualization Software, Network Analysis, Seaborn, Data-Driven Decision-Making, Data Mining, Scatter Plots, R Programming, Graph Theory, Data Science, Time Series Analysis and Forecasting
Build toward a degree
Mixed · Course · 1 - 3 Months

Skills you'll gain: Software-Defined Networking, Wide Area Networks, Network Planning And Design, Virtual Private Networks (VPN), Network Architecture, Cloud Computing, Network Infrastructure, Network Routing, Network Troubleshooting, System Configuration, Configuration Management, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, Javascript, JSON, Restful API, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud-Native Computing, Cloud Applications, Cloud Development, Serverless Computing, Cloud API, API Gateway, Application Development, Google Cloud Platform, Authentications, Application Programming Interface (API), Identity and Access Management, Event-Driven Programming, Node.JS, Restful API, Microservices, Authorization (Computing), Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, TypeScript, Software Testing, Test Driven Development (TDD), Code Coverage, Testability, Test Case, Javascript, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Natural Language Processing, Data Ethics, Responsible AI, Text Mining, Large Language Modeling, Artificial Intelligence and Machine Learning (AI/ML), Time Series Analysis and Forecasting, Data Analysis, Machine Learning, Unstructured Data, Data Cleansing, Data Processing, Applied Machine Learning, Deep Learning, Unified Modeling Language, Machine Learning Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Debugging, Development Environment, Open Source Technology, Integrated Development Environments, Computer Programming Tools, Software Development, Software Development Tools, Artificial Intelligence, Generative AI
Intermediate · Guided Project · Less Than 2 Hours