Java Data Structures courses can help you learn about arrays, linked lists, stacks, queues, and hash tables. You can build skills in algorithm efficiency, data manipulation, and implementing search and sort techniques. Many courses introduce tools like Eclipse or IntelliJ IDEA, which support coding practices and debugging, allowing you to apply your knowledge in real coding environments. You'll also explore concepts such as recursion and tree structures, enhancing your ability to tackle complex programming challenges.

Sciences Po
Skills you'll gain: Data Governance, Social Sciences, Digital Transformation, Governance, Data Ethics, Data Sharing, Data-Driven Decision-Making, Big Data, Political Sciences, Economics, Information Privacy, Policy Analysis, Information Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Computer Security Incident Management, Cyber Threat Hunting, Cyber Threat Intelligence, Cyber Operations, Intrusion Detection and Prevention, Threat Detection, Cyber Attacks, Cyber Security Assessment, Cybersecurity, Network Security, Digital Forensics, Data Security, Network Analysis, Exploit development, Malware Protection, Vulnerability Assessments
Beginner · Course · 1 - 3 Months

Universidade de São Paulo
Skills you'll gain: Econometrics, Regression Analysis, Statistical Inference, Statistical Hypothesis Testing, Statistical Modeling, Correlation Analysis, Statistical Analysis, Economics, Time Series Analysis and Forecasting, Probability & Statistics, Mathematical Modeling
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, Generative AI Agents, Tool Calling, Agentic systems, User Interface and User Experience (UI/UX) Design, Human Computer Interaction, OpenAI, Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Portfolio Management, Portfolio Risk, Financial Modeling, Correlation Analysis, Investment Management, Financial Analysis, Risk Modeling
Intermediate · Guided Project · Less Than 2 Hours

L&T EduTech
Skills you'll gain: Construction Engineering, Geospatial Mapping, Geospatial Information and Technology, Geographic Information Systems, Spatial Data Analysis, Construction, Construction Management, Visualization (Computer Graphics), Civil and Architectural Engineering, Spatial Analysis, Global Positioning Systems, GIS Software, Survey Creation, AutoCAD Civil 3D, Building Information Modeling, 3D Modeling, Data Import/Export
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Application Security, Vulnerability Assessments, Vulnerability Management, Event Monitoring, Security Controls, Data Integrity, System Monitoring, Patch Management, Server Side
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Photo Editing, Generative AI, Adobe Photoshop, Image Quality, Data Import/Export, Adobe Creative Cloud, Prompt Engineering, Editing, File Management, Graphic Design
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Back-End Web Development, Django (Web Framework), Server Side, Data Migration, Object-Relational Mapping, Full-Stack Web Development, Data Structures, Database Development, Operational Databases, Relational Databases
Intermediate · Guided Project · Less Than 2 Hours

Università di Napoli Federico II
Skills you'll gain: Political Sciences, Policy Analysis, Social Sciences, Systems Thinking, Governance, World History, Research Methodologies, Case Studies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Databases, Data Migration, Oracle Cloud, Database Administration, Data Import/Export, Database Architecture and Administration, Application Development, Database Management, Performance Tuning, Disaster Recovery, SQL, Cloud Infrastructure, Identity and Access Management, Scalability
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Visual Basic (Programming Language), Database Management, System Software, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Computer Networking, Computer Programming, Network Protocols, Programming Principles, Software Development, Automation, Analysis, Cloud Computing, Debugging
Beginner · Course · 1 - 3 Months