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: React.js, Application Deployment, Web Applications, Javascript, Bootstrap (Front-End Framework), Development Environment, User Interface (UI), Cascading Style Sheets (CSS), Application Programming Interface (API), GitHub
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Storage, Database Management, Cloud Platforms, Role-Based Access Control (RBAC)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Javascript and jQuery, Javascript, TypeScript, Software Design Patterns, Web Development, Application Development, Mobile Development
Advanced · Guided Project · Less Than 2 Hours

Simplilearn
Skills you'll gain: C# (Programming Language), Restful API, Unity Engine, Object Oriented Programming (OOP), .NET Framework, C++ (Programming Language), Video Game Development, ASP.NET, Object-Relational Mapping, Software Engineering, Web Services, Application Development, Software Design Patterns, Database Management, Programming Principles, C (Programming Language)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Front-End Web Development, Javascript, UI Components, Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

University of Washington
Skills you'll gain: Feature Engineering, Data Analysis, Predictive Modeling, Data Processing, Data Wrangling, Statistical Modeling, Statistics, Data Science, Data Collection, Applied Machine Learning, R Programming, Research, Supervised Learning, Data Validation, Technical Communication, Python Programming
Mixed · Course · 1 - 3 Months

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Vulnerability Assessments, Hardware Architecture, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, Authentications, Network Monitoring, TCP/IP, Network Analysis
Beginner · Course · 1 - 4 Weeks

University of Cambridge
Skills you'll gain: Financial Acumen, Variance Analysis, Financial Forecasting, Cost Benefit Analysis, Cash Flows, Financial Analysis, Financial Modeling, Financial Reporting, Cost Estimation, Financial Statements, Return On Investment, Accounting, Budgeting, Microsoft Excel, Business Modeling, Internal Communications
Beginner · Course · 1 - 3 Months

Starweaver
Skills you'll gain: E-Commerce, Supply Chain Management, Procurement, Supply Chain, Logistics Management, Order Fulfillment, Supplier Management, Inventory Management System, Logistics, Business Technologies, Technology Strategies, Corporate Sustainability, Process Optimization, Demand Planning, Forecasting, Automation, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Manipulation, Data Transformation, Pivot Tables And Charts, Data Wrangling, Data Cleansing, Data Integration, R Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Security, Open Shortest Path First (OSPF), Network Performance Management, Network Monitoring, OSI Models, Firewall, Network Planning And Design, Network Protocols, System Configuration, Infrastructure as Code (IaC), Terraform
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: TypeScript, Data Structures, Javascript
Intermediate · Guided Project · Less Than 2 Hours