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.

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Computer Security Incident Management, Command-Line Interface, Cryptography, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, Encryption, Information Systems Security, Vulnerability Assessments, Cyber Attacks, Security Engineering, Risk Management Framework, Multi-Factor Authentication, Cloud Security, Penetration Testing, Risk Management
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Market Research, Analytical Skills, Data Collection, Data-Driven Decision-Making, Market Analysis, Marketing, Business Research, Quantitative Research, Data Analysis, Customer Insights, Market Trend, Consumer Behaviour, Trend Analysis, Competitive Analysis, Strategic Decision-Making
Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Policy, Financial Systems, Banking, Financial Market, Financial Regulation, Market Liquidity, Economics, Economics, Policy, and Social Studies, Market Dynamics, Crisis Management
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: PL/SQL, Data Integrity, Oracle Databases, Business Logic, Stored Procedure, SQL, Relational Databases, Database Management, Database Development, Event-Driven Programming, Auditing, Debugging, Maintainability
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Budgeting, Data Visualization, Google Sheets, Spreadsheet Software, Presentations, Data Sharing
Beginner · Guided Project · Less Than 2 Hours

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, Network Engineering, Network Architecture, Scripting, Application Programming Interface (API), Data Modeling, General Networking, Network Planning And Design, Automation, Network Administration, Linux Commands, Python Programming, Network Protocols, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Human Resources Management and Planning, Employee Performance Management, Performance Management, Growth Strategies, Delegation Skills, Business Management, People Management, Subcontracting, Recruitment, Employee Training, Organizational Structure, Organizational Strategy, Leadership, Communication
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Generative AI Agents, HubSpot CRM, Sales Enablement, Customer Relationship Management (CRM) Software, Sales Process, Business Process Automation, Sales Management, Lead Generation, Workflow Management, AI Workflows, Agentic Workflows, Process Analysis, Sales, Automation, Data Entry, AI Enablement, Business Process Modeling, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Power Platform, Microsoft Power Automate/Flow, No-Code Development, Business Process Automation, Application Development, Application Design, Automation, Business Process, UI Components, Data Modeling
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Education Software and Technology, Mathematics Education, Growth Mindedness, Digital pedagogy, Simulation and Simulation Software, Simulations, User Feedback, Interactive Design, Research, Experimentation, Scientific Visualization, Chemistry, Display Devices, Physics, Biology
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Excel, Spreadsheet Software, Data Entry
Beginner · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Cloud Deployment, Cloud-Native Computing, Cloud Applications, Cloud Platforms, Microservices, Cloud Computing, DevOps, Kubernetes, Continuous Delivery, Containerization, Amazon Web Services, Serverless Computing, Virtual Machines, Performance Testing, System Monitoring, Flask (Web Framework)
Beginner · Course · 1 - 4 Weeks