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.

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Java, Java Programming, Dependency Analysis, Docker (Software), JSON, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Infrastructure, Load Balancing, Cloud Computing, Cloud Applications, Cloud Deployment, Cloud Platforms, Cloud Services, Cloud Solutions, Scalability, Microsoft Azure, Application Deployment, Amazon Web Services, ASP.NET, Disaster Recovery, Capacity Management, Application Performance Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Basic Electrical Systems, Electrical Systems, Sustainable Technologies, Power Electronics, Electric Power Systems, Electronic Systems, Electrical Engineering, Sustainable Engineering, Energy and Utilities, Environmental Engineering, Performance Testing, High Voltage, Environmental Science, Systems Integration, Thermal Management, Climate Change Mitigation, Control Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Hardware Troubleshooting, Cloud Computing, Cloud Infrastructure, Virtualization, Computer Hardware, Network Protocols, Virtual Machines, General Networking, Network Administration, Network Security, Cloud Storage, Desktop Support, Hardware Architecture, TCP/IP, Peripheral Devices, Wireless Networks, Mobile Security, USB, Networking Hardware
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Business Process Automation, Data Presentation, Java, Productivity Software, C# (Programming Language), Data Capture, File I/O, Programming Principles, Scalability, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Restful API, Application Deployment, Generative AI, Java, Development Environment, Image Analysis, Software Development, Computer Vision
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, Database Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Active Directory, Azure Active Directory, Group Policy, Hyper-V, Windows Servers, Virtualization and Virtual Machines, Cloud Infrastructure, Containerization, Hybrid Cloud Computing, Remote Access Systems, Microsoft Servers, Virtual Private Networks (VPN), Virtual Networking, Cloud Platforms, Microsoft Azure, Dynamic Host Configuration Protocol (DHCP), Data Storage Technologies, Windows PowerShell, Network Infrastructure, Cloud Storage
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Canva (Software), Graphic and Visual Design, Design, Graphic Design, Digital Design, Typography, Layout Design, Design Elements And Principles, Photo Editing, File Management, Color Theory
Mixed · Course · 1 - 3 Months

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Algorithms, Software Testing, Java, Computer Programming, Software Development, Scalability
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Computer Programming, Software Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Identity and Access Management, Cloud Infrastructure, Google Cloud Platform, Cloud Computing, Data Storage, Role-Based Access Control (RBAC), System Monitoring, Cloud Storage, Security Controls, NoSQL, Encryption, Scalability
Intermediate · Course · 1 - 3 Months