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.

LearnQuest
Skills you'll gain: JUnit, Testability, Unit Testing, Software Testing, Test Case, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Cloud Security, Application Security, Network Security, Cloud Computing, Cybersecurity, Information Systems Security, Security Controls, Infrastructure Security, Remote Access Systems, Public Key Infrastructure, Cryptography, Vulnerability Assessments, Virtualization, Virtual Machines, Encryption, Authorization (Computing)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Metasploit, Penetration Testing, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Cybersecurity, Data Ethics, Virtual Machines, Linux, Technical Documentation
Beginner · Guided Project · Less Than 2 Hours

Fundação Lemann
Skills you'll gain: Google Workspace, Education Software and Technology, Learning Management Systems, Gmail, Educational Materials, Collaboration, Document Management, Data Sharing, Cloud Storage, Spreadsheet Software
Mixed · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Vulnerability Assessments, Cybersecurity, Cyber Threat Intelligence, Cyber Attacks, Security Management, Cyber Threat Hunting, Information Systems Security, Threat Detection, Data Security, Network Security, Application Security, Cyber Security Strategy, DevSecOps, Malware Protection, Cloud Security, Cyber Security Assessment, Risk Management Framework, Encryption, Authentications
Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Augmented and Virtual Reality (AR/VR), Storyboarding, Augmented Reality, Virtual Reality, Usability Testing, Design Thinking, Prototyping, User Experience Design, Interaction Design, Conceptual Design, Virtual Environment, Human Centered Design, User Research, Wireframing, Data Ethics
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, OAuth, Google Cloud Platform, Kubernetes, Cloud Storage, Security Controls, Data Storage Technologies, Application Security, Authorization (Computing), Data Security, Role-Based Access Control (RBAC), Hardening, Encryption, Key Management, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Agentic systems, Generative AI Agents, LLM Application, Application Design, Tool Calling, Large Language Modeling, Software Design Patterns, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Management, Social Media, Social Media Marketing, Google Ads, Email Marketing, Social Media Strategy, Online Advertising, Social Media Campaigns, Content Creation, Customer Retention, Instagram, Paid media, Customer Relationship Building, E-Commerce, Digital Marketing, TikTok, Keyword Research, Content Marketing, Strategic Marketing, Brand Marketing
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Drug Development, Clinical Trials, Pharmaceuticals, Clinical Research, Pre-Clinical Development, Pharmacology, Medical Devices, Statistical Analysis, Epidemiology, Health Policy, Regulatory Compliance, Data Collection
Mixed · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: SQL, Relational Databases, Database Management, Databases, Database Design, Data Visualization, Object Oriented Programming (OOP), Data Processing, Data Modeling, Data Manipulation, Python Programming, Data Structures, Application Programming Interface (API)
Mixed · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Infectious Diseases, Epidemiology, Public Health, Microbiology, Health Disparities, Community Health, Social Determinants Of Health, Preventative Care, Health Care, Health Policy, Public Policies, Trend Analysis, Immunology
Beginner · Course · 1 - 4 Weeks