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.

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Microsoft SQL Servers, C# (Programming Language), Web Services, Database Management, Database Development, JSON, Back-End Web Development, SQL, Database Design, Server Side, .NET Framework, Object Oriented Programming (OOP), Application Programming Interface (API), API Design, Database Architecture and Administration, Programming Principles, Object Oriented Design
★ 4.1 (14) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: R Programming, R (Software), Data Visualization, Statistical Programming, Time Series Analysis and Forecasting, Interactive Data Visualization, Data-Driven Decision-Making, Trend Analysis, Rmarkdown, Data Processing, Data Analysis, Predictive Modeling, Data Cleansing, Data Manipulation, Exploratory Data Analysis, Predictive Analytics, Revenue Management, Forecasting, Business Strategy, Machine Learning
★ 4.9 (12) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: TypeScript, Code Reusability, React.js, Javascript, Software Design Patterns
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Ggplot2, Plot (Graphics), Tidyverse (R Package), Data Visualization, Statistical Visualization, Data Analysis, Exploratory Data Analysis, R Programming, Data Visualization Software, Data Wrangling, Data Manipulation, R (Software)
★ 5 (20) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Problem Solving, Python Programming, Algorithms, Data Manipulation, Computational Thinking, Programming Principles, Data Processing, Data Dictionary, Computer Programming, Operations, Data Analysis, Analysis, Arithmetic
★ 4.6 (17) · Mixed · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Team Building, Clinical Leadership, Team Collaboration, Team Leadership, Leadership Development, Professional Development, Leadership, Health Informatics, Nursing Management, Initiative and Leadership, Informatics, Cultural Diversity
★ 4.3 (26) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Frontend Integration, Transaction Processing, Event-Driven Programming, Front-End Web Development, JavaScript Frameworks, Event Monitoring, Development Environment, Web Development, Web Applications, Program Development, Secure Coding, Web Development Tools, React.js, Emerging Technologies, Application Development, Javascript
★ 4.8 (78) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: R Programming, Rmarkdown, R (Software), Tidyverse (R Package), Ggplot2, Data Import/Export, Data Visualization, Plot (Graphics), Statistical Visualization, Data Analysis, Statistical Reporting, Data Visualization Software, Data Presentation, Data Science, Data Manipulation, Statistical Analysis, Data Wrangling, Data Cleansing, Data Integration, Communication
★ 4.7 (7) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, Web Design and Development, Front-End Web Development, Responsive Web Design, React.js, JavaScript Frameworks, Web Development, Frontend Integration, Application Frameworks, UI Components, User Interface (UI), Event-Driven Programming, Maintainability
★ 4.4 (12) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, File I/O, Data Structures, File Systems, Code Reusability, Algorithms, Performance Tuning, File Management
Intermediate · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), jQuery, Javascript and jQuery, Web Design and Development, Javascript, Web Development, Animations, Front-End Web Development, Animation and Game Design, Web Applications, Event-Driven Programming, Software Design Patterns
Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Full-Stack Web Development, Retrieval-Augmented Generation, Web Applications, JavaScript Frameworks, React.js, LLM Application, Web Development, Javascript, Tool Calling, Agentic Workflows, Generative AI Agents, Data Persistence
★ 4.7 (16) · Beginner · Project · Less Than 2 Hours