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: Javascript, Data Persistence, Scripting, Scripting Languages, Data Storage, Web Development, Functional Design, Data Structures, Business Logic, Game Design, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Ggplot2, Model Evaluation, Data Visualization, Regression Analysis, Predictive Analytics, Predictive Modeling, Data-Driven Decision-Making, Statistical Modeling, R Programming, Descriptive Statistics, Statistical Methods, Exploratory Data Analysis, Statistical Analysis, Data Analysis
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Application Deployment, Kubernetes, Network Troubleshooting, Performance Tuning, Continuous Deployment, Network Performance Management, Network Routing, Network Security, Network Protocols, Load Balancing, Scalability
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Purchasing, Supplier Relationship Management, Contract Management, Supplier Management, Procurement, Vendor Management, Strategic Sourcing, Negotiation, Business Ethics, Compliance Management, Supply Chain Management, Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: TypeScript, Scripting, Scripting Languages, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Claude Code, Vibe coding, Anthropic Claude, Model Context Protocol, Application Development, Command-Line Interface, Application Design, Programming Principles, Generative AI, Automation, Generative AI Agents, Image Analysis, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), GitHub, Git (Version Control System), Version Control, CI/CD, File I/O, Object Oriented Programming (OOP), Test Automation, JUnit, Test Data, Unit Testing, Test Case, Regression Testing, Web Development Tools, Test Script Development, Software Testing, Javascript, Browser Compatibility, Scripting, Computer Programming
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Post-Production, Storytelling, Video Editing, Timelines, Color Theory, Cinematography, Web Content Accessibility Guidelines, Music, Editing
Mixed · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Persuasive Communication, Patient Communication, Interviewing Skills, Cultural Sensitivity, Cultural Diversity, Media and Communications, Diversity Awareness, Public Health, Interpersonal Communications, Rapport Building, Driving engagement
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Desktop Support, Generative AI, End User Training and Support, System Support, Prompt Engineering Tools, Technical Support, Product Support, ChatGPT, Automation
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Statistical Modeling, Exploratory Data Analysis, R Programming, Predictive Modeling, Statistical Hypothesis Testing, Tidyverse (R Package), Data Analysis, Data Modeling, Regression Analysis, Data Science, Classification And Regression Tree (CART), Statistical Inference, Statistical Analysis, Rmarkdown, Data Preprocessing, Statistical Methods, Model Evaluation, Machine Learning
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Control Objectives for Information and Related Technology (COBIT), IT Management, Information Technology Architecture, Performance Management, Governance, Enterprise Architecture, Program Implementation, Process Management, Information Technology, Business Process, Training and Development, Risk Management
Intermediate · Course · 1 - 3 Months