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.

LearnQuest
Skills you'll gain: Software-Defined Networking, Network Security, Infrastructure Security, Computer Networking, Local Area Networks, Network Architecture, Network Infrastructure, Wide Area Networks, Virtualization, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Infrastructure, Virtualization, VMware ESX Servers, Virtual Machines, Infrastructure Architecture, Cloud Computing, Containerization, Data Centers
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Scripting Languages, Node.JS, TypeScript, Data Manipulation, JSON, Web Development Tools, Generative AI, Data Structures, Programming Principles, Object Oriented Programming (OOP), Web Servers, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unreal Engine, Video Game Development, Game Design, Animation and Game Design, Scripting, Virtual Environment, Event-Driven Programming
Mixed · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: MITRE ATT&CK Framework, Cyber Operations, Threat Modeling, Cyber Security Strategy, Cyber Threat Intelligence, Penetration Testing, Cybersecurity, Exploitation techniques, Vulnerability Assessments, Threat Detection, Human Factors (Security), Security Awareness, Security Testing, Network Security, Generative AI
Intermediate · Course · 1 - 3 Months

Skills you'll gain: R Programming, Analysis, Mathematical Software, Data Analysis
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: SAS (Software), Data Visualization, Data Manipulation, Data Analysis, Data Import/Export, Data Visualization Software, SQL, Statistical Analysis, Data Cleansing, Data Transformation, Exploratory Data Analysis
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Continuous Integration, Code Coverage, Code Review, Vulnerability, CI/CD, Application Security, DevSecOps, Vulnerability Assessments, Software Quality Assurance, Maintainability, Software Quality (SQA/SQC), GitHub, Software Installation, System Configuration, Security Management, Data Integration, Quality Improvement, Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language)
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Data Storytelling, Plotly, Statistical Visualization, Interactive Data Visualization, Matplotlib, Data Visualization Software, Network Analysis, Seaborn, Data-Driven Decision-Making, Data Mining, Scatter Plots, R Programming, Graph Theory, Data Science, Time Series Analysis and Forecasting
Build toward a degree
Mixed · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Cloud Security, DevSecOps, Threat Management, Zero Trust Network Access, Cloud Computing Architecture, Cloud Standards, Solution Architecture, Cybersecurity, Cloud Computing, Security Controls, Security Strategy, Enterprise Architecture, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Ajax, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Content Accessibility Guidelines, Usability, Javascript and jQuery, Hypertext Markup Language (HTML), Web Development, Web Design and Development, Usability Testing, Javascript, Application Deployment, Web Design, Interactive Data Visualization, Event-Driven Programming, Semantic Web, Web Applications, Functional Testing
Beginner · Specialization · 1 - 3 Months