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: Cascading Style Sheets (CSS), HTML and CSS, Web Design and Development, Front-End Web Development, Animations, Javascript, Application Deployment, Interactive Design, Web Content Accessibility Guidelines, User Interface (UI), Usability, Maintainability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Transaction Processing, Secure Coding, Distributed Computing, Data Integrity, Integrated Development Environments, Program Development, Cryptography, Software Design Documents, Development Environment, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Authentications, Cryptography, Encryption, .NET Framework, Open Web Application Security Project (OWASP), Application Security, Vulnerability Scanning, C# (Programming Language), Data Security, Data Validation, Cross Platform Development, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Windows Servers, Remote Access Systems, Hyper-V, Server Administration, Operating System Administration, Active Directory, Windows PowerShell, Dynamic Host Configuration Protocol (DHCP), Virtual Private Networks (VPN), Group Policy, Virtualization, Network Infrastructure, System Monitoring, Data Storage, Event Monitoring, Identity and Access Management, Virtualization and Virtual Machines, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Server Side, Restful API, Ajax, Full-Stack Web Development, API Design, Node.JS, Postman API Platform, Web Applications, Application Programming Interface (API), Back-End Web Development, Web Servers, Web Development Tools, API Testing, Web Development, Javascript, Front-End Web Development, JSON, Middleware
Advanced · Course · 1 - 3 Months

Skills you'll gain: Marketing Effectiveness, Marketing Planning, Brand Management, Campaign Management, Market Analysis, Brand Awareness, Marketing Strategy and Techniques, Marketing Analytics, Brand Loyalty, Customer experience strategy (CX), Budget Management, Performance Measurement, Digital Marketing
Mixed · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Zero Trust Network Access, Disaster Recovery, Virtual Networking, Data Migration, Cloud Computing Architecture, Network Architecture, Infrastructure As A Service (IaaS), Cloud Security, Data Storage Technologies, Hybrid Cloud Computing, Firewall, Virtual Private Networks (VPN), Platform As A Service (PaaS), Load Balancing
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Web Design and Development, Responsive Web Design, HTML and CSS, Web Content Accessibility Guidelines, Front-End Web Development, Cascading Style Sheets (CSS), Web Development Tools, React.js, User Interface (UI), Javascript, Web Servers, Semantic Web, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Test Driven Development (TDD), Web Development Tools, Development Testing, Unit Testing, Software Testing, Testability, Javascript, Mockups
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Django (Web Framework), Model View Controller, Authentications, Chart.js, Data Import/Export, Full-Stack Web Development, Web Development, Data Modeling, Cascading Style Sheets (CSS), Responsive Web Design, Javascript, User Interface (UI), Development Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Authentications, Hardening, Key Management, Data Security, Cloud Security, Security Management, Security Controls, Encryption, Authorization (Computing), Identity and Access Management, System Configuration, Servers, Configuration Management, Database Management
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Amazon DynamoDB, Amazon Web Services, NoSQL, Database Management, Database Design, Data Store, Development Environment, Command-Line Interface, JSON, Application Programming Interface (API), Software Development Tools, Performance Tuning, Scalability
Intermediate · Course · 1 - 3 Months