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.

Scrimba
Skills you'll gain: Data Structures, Programming Principles, Python Programming, User Interface (UI), Scripting, Scripting Languages, Computer Programming, Web Development Tools, Software Engineering, Web Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Data Persistence, Javascript, Context Management, Web Development
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Control Objectives for Information and Related Technology (COBIT), Performance Management, Governance, Performance Measurement, Process Management, IT Management, Project Implementation, Program Implementation, Enterprise Architecture, Risk Management Framework, Goal Setting, Business Analysis, Business Strategies, Stakeholder Management
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Serverless Computing, Amazon S3, Identity and Access Management, Disaster Recovery, Amazon Elastic Compute Cloud, Amazon CloudWatch, Cloud Computing Architecture, Amazon Redshift, Amazon DynamoDB, Solution Architecture, Cloud-Native Computing, Containerization, Cloud Infrastructure, Cloud Engineering, Kubernetes, Cloud Computing, Hybrid Cloud Computing, API Gateway
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Penetration Testing, Threat Management, Threat Detection, Cybersecurity, Vulnerability Scanning, Cyber Attacks, Data Ethics, Vulnerability Assessments, Security Strategy, Network Security, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Mathematical Modeling, Epidemiology, Infectious Diseases, Model Evaluation, Simulations, Statistical Modeling, Predictive Modeling, Data Modeling, R Programming, Statistical Methods, Public Health, Probability Distribution
Intermediate · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Infectious Diseases, Infection Control, Epidemiology, Public Health and Disease Prevention, Preventative Care, Public Health, Hand Hygiene, Personal protective equipment, Diagnostic Tests, Intensive Care Medicine, Patient Treatment, Diagnostic Radiology
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Javascript, User Interface (UI), Web Development, Web Development Tools, HTML and CSS, Scripting, Scripting Languages
Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Sampling (Statistics), Statistical Hypothesis Testing, Data-Driven Decision-Making, Descriptive Statistics, Correlation Analysis, Data Analysis, Probability Distribution, Statistical Software, Statistics, Statistical Analysis, Estimation, R (Software), Data Visualization, Risk Analysis, Probability, Statistical Methods, R Programming, Return On Investment, Probability & Statistics, Problem Solving
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Kubernetes, Docker (Software), Containerization, Cloud-Native Computing, Application Deployment, YAML, Devops Tools, Command-Line Interface, Google Cloud Platform, Web Applications, Cloud Deployment, Data Persistence, Development Environment, Configuration Management, Virtual Networking, Nginx, CI/CD, MongoDB, Service Management, Infrastructure Security
Intermediate · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Game Design, Software Development, Development Environment, Software Documentation, Data Validation, Javascript, Debugging, Maintainability, Data Structures, Software Design, Computer Programming, Data Management
Beginner · Course · 1 - 4 Weeks

Rutgers the State University of New Jersey
Skills you'll gain: Supply Chain Management, Strategic Sourcing, Forecasting, Supply Chain Planning, Materials Management, Procurement, Supplier Management, Inventory Management System, Cash Management, Business Process Reengineering, Payment Processing, Product Quality (QA/QC)
Advanced · Course · 1 - 4 Weeks