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, Unit Testing, Test Case, Test Data, Test Script Development, Test Automation
Intermediate Ā· Course Ā· 1 - 4 Weeks

Coursera
Skills you'll gain: Vue.JS, Web Development Tools, Web Applications, Front-End Web Development, HTML and CSS, Javascript, Microsoft Visual Studio
Intermediate Ā· Guided Project Ā· Less Than 2 Hours

Skills you'll gain: Web Development, Web Servers, Restful API, System Programming, Debugging
Intermediate Ā· Course Ā· 3 - 6 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Recruitment, Employee Onboarding, Talent Acquisition, Applicant Tracking Systems, Talent Sourcing, Job Analysis, Human Resources, Performance Appraisal, Interviewing Skills, Psychological Evaluations, Organizational Structure
Beginner Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Application Design, User Interface (UI), Workflow Management, Databases, Business Process Automation
Beginner Ā· Course Ā· 1 - 4 Weeks

Pohang University of Science and Technology(POSTECH)
Skills you'll gain: Blockchain, FinTech, Market Trend, Cryptography, Digital Assets, Market Data, Payment Systems, Financial Market, Financial Systems, Financial Services, Investments, Market Analysis
Intermediate Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Web Applications, Application Development, Web Development, Leaflet (Software), React.js, UI Components, User Interface (UI), Application Deployment, Cloud Deployment, JavaScript Frameworks, OAuth, User Accounts, Authentications, Front-End Web Development, Development Environment, User Interface and User Experience (UI/UX) Design, Secure Coding, Responsive Web Design, Javascript, Software Installation
Intermediate Ā· Specialization Ā· 1 - 3 Months

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Firewall, Proxy Servers, Encryption, Authentications
Intermediate Ā· Course Ā· 1 - 3 Months

EC-Council
Skills you'll gain: Penetration Testing, Open Web Application Security Project (OWASP), Threat Modeling, Cybersecurity, Cloud Security, Mobile Security, Vulnerability Assessments, Network Security, Application Security, Threat Detection, Security Awareness, Cyber Attacks, Brute-force attacks, MITRE ATT&CK Framework, Encryption, Vulnerability Scanning, Exploitation techniques, Infrastructure Security, Wireless Networks, Internet Of Things
Beginner Ā· Course Ā· 1 - 3 Months

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Business Logic, Unit Testing, Restful API, Application Deployment, Full-Stack Web Development, Application Development, Enterprise Application Management, Software Architecture, Data Modeling, User Interface (UI)
Advanced Ā· Course Ā· 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon Web Services, Containerization, Docker (Software), Kubernetes, Application Deployment, Cloud Deployment, CI/CD, Cloud Security, Hybrid Cloud Computing, Scalability
Intermediate Ā· Course Ā· 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Health Policy, Epidemiology, Public Health, Survey Creation, Health Informatics, Data Collection, Health Equity, Social Determinants Of Health, Community Health, Health Information Management, Continuous Monitoring
Beginner Ā· Course Ā· 1 - 4 Weeks