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, Jest (JavaScript Testing Framework), JavaScript Frameworks, Front-End Web Development, Unit Testing, UI Components, Event-Driven Programming, Javascript, User Interface (UI), Software Testing, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

University of Leeds
Skills you'll gain: Web Design and Development, Web Development, Web Content Accessibility Guidelines, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, Full-Stack Web Development, Data Security, Web Content, Back-End Web Development, Program Development, Cascading Style Sheets (CSS), Javascript, Information Privacy, Computer Architecture
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cyber Threat Hunting, Incident Response, Computer Security Incident Management, Cybersecurity, Network Security, Cyber Security Policies, Threat Detection, Security Controls, Threat Management, Intrusion Detection and Prevention, Firewall, Security Information and Event Management (SIEM), Continuous Monitoring, Endpoint Security, Network Monitoring, Malware Protection
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Google Gemini, Code Review, Application Deployment, Continuous Deployment, Responsible AI, Software Development Tools, Google Cloud Platform, Generative AI, Prompt Engineering, Debugging, Application Development
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Responsible AI, Data Ethics, General Data Protection Regulation (GDPR), Ethical Standards And Conduct, Business Ethics, Information Privacy, Case Studies, Regulatory Compliance, Artificial Intelligence, Regulatory Affairs, Social Studies
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Data Visualization Software, Dashboard, Data Visualization, Interactive Data Visualization, Data Transformation, Tableau Software, Data Storytelling, Data Manipulation, Exploratory Data Analysis, Heat Maps, Scatter Plots, Data Analysis, Forecasting, Geospatial Mapping
Beginner · Course · 1 - 4 Weeks

Universitat Politècnica de València
Skills you'll gain: Prompt Engineering, ChatGPT, Microsoft Copilot, Email Automation, Deepseek, Artificial Intelligence, Generative AI, Productivity, Educational Materials, Microsoft Excel, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Data Management, Cloud Storage, Cloud Computing Architecture, Serverless Computing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Applications, Cloud-Native Computing, Cloud Development, Google App Engine, Serverless Computing, Google Cloud Platform, Microservices, Application Deployment, Application Development, Application Performance Management, Infrastructure as Code (IaC), Cloud API, API Gateway, Authentications, Platform As A Service (PaaS), Application Programming Interface (API), Kubernetes, Cloud Storage, Cloud Computing, Debugging
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: TCP/IP, Network Architecture, Network Routers, Networking Hardware, General Networking, Network Security, Dynamic Host Configuration Protocol (DHCP), Network Infrastructure, Network Troubleshooting, Computer Networking, Network Protocols, Network Switches
Beginner · Course · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Web Services, Customer Communications Management, Customer experience strategy (CX), Integrated Marketing Communications, Cross-Channel Marketing, Service Level, Systems Integration, Security Controls
Beginner · Course · 1 - 4 Weeks