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.

Universitat Politècnica de València
Skills you'll gain: Encryption, Malware Protection, Distributed Denial-Of-Service (DDoS) Attacks, Computer Security Awareness Training, Cybersecurity, Cyber Attacks, Identity and Access Management, Security Awareness, Exploitation techniques, Security Controls, Cryptography, Data Security, Personally Identifiable Information, User Accounts, Key Management, Human Factors (Security), Email Security, General Data Protection Regulation (GDPR), Cyber Risk, Information Privacy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploit development, Penetration Testing, Exploitation techniques, Scripting, Brute-force attacks, Scripting Languages, Shell Script, Python Programming, Program Development, Network Protocols, Data Persistence
★ 4.8 (13) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Authentications, OAuth, Back-End Web Development, Event-Driven Programming, Database Management, Object-Relational Mapping, Databases, Authorization (Computing), Redis, Secure Coding, Application Programming Interface (API), Restful API, Data Modeling, API Design, Email Automation
Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: AI Security, AI Orchestration, MLOps (Machine Learning Operations), Model Deployment, Vulnerability Assessments, AI Workflows, Governance Risk Management and Compliance, Retrieval-Augmented Generation, Responsible AI, Compliance Auditing, LLM Application, Personally Identifiable Information, Regulatory Compliance, Regulatory Requirements, Application Deployment, Model Training, Cloud Deployment, Solution Architecture, Generative AI, Artificial Intelligence
★ 2.6 (11) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Programming Principles, Development Environment, Data Management, Integrated Development Environments, Software Installation, Style Guides
Beginner · Course · 3 - 6 Months

University of Minnesota
Skills you'll gain: Social Determinants Of Health, Health Disparities, Health Equity, Health Policy, Systems Thinking, Health Informatics, Public Health, Economics, Policy, and Social Studies, Social Justice, Community Health, Health Systems, Social Impact, R (Software), Data Analysis, Data Literacy, R Programming, Data Visualization, Data-Driven Decision-Making, Diversity Awareness
★ 4.7 (16) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Electronics, Electronic Components, Basic Electrical Systems, Electronic Hardware, Electronics Engineering, Electronic Systems, Hardware Design, Electrical Engineering, Semiconductors, Power Electronics, Laboratory Experience, Hardware Troubleshooting, Laboratory Equipment, Engineering, Scientific, and Technical Instruments
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Target Audience, Driving engagement, Customer Analysis, Customer Engagement, Persona Development, Customer Insights, Customer Retention, Data-Driven Marketing, User Feedback, Market Research, Marketing Strategies, Data-Driven Decision-Making, Consumer Behaviour, Data Analysis, Business Ethics
★ 4.1 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: 3D Modeling, Autodesk Maya, 3D Assets, SketchUp (3D Modeling Software), Autodesk, Computer Graphic Techniques, Visualization (Computer Graphics), Architectural Drawing, Computer Graphics, Architecture and Construction, Image Quality, Design Software, Functional Design, Design, Simulations, Design Elements And Principles
★ 4.9 (90) · Intermediate · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: Network Security, Role-Based Access Control (RBAC), Cybersecurity, Firewall, Network Monitoring, Authentications, Virtual Private Networks (VPN), Computer Networking, Authorization (Computing), Intrusion Detection and Prevention, Identity and Access Management, Security Controls, Encryption, Remote Access Systems, Cryptographic Protocols, Group Policy
★ 4.7 (7) · Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Cyber Governance, Safety Culture, Dashboard, Cyber Threat Intelligence, Communication, Business Metrics, Security Strategy, Governance, Governance Risk Management and Compliance, Communication Strategies, Strategic Communication, Culture Transformation, IT Management, Enterprise Security, Cyber Operations, Leadership, Regulatory Requirements, Risk Mitigation, Initiative and Leadership, Organizational Leadership
★ 5 (15) · Beginner · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Climate Change Programs, Environmental Issue, Environment, Hydrology, Climate Change Adaptation, Environmental Monitoring, International Relations, Mathematical Modeling, Physical Science, Environmental Science, Biology, Political Sciences, Biochemistry, Science and Research, Research, Microbiology
★ 4.9 (20) · Beginner · Course · 1 - 3 Months