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.

University of Colorado System
Skills you'll gain: Cryptography, Data Integrity, Encryption, Authentications, Information Assurance, Data Security, Public Key Cryptography Standards (PKCS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Management, Microsoft Office, Version Control, Document Management, Data Sharing, Cloud Storage, Data Storage, Data Loss Prevention
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Responsive Web Design, HTML and CSS, JSON, React.js, Jest (JavaScript Testing Framework), Hypertext Markup Language (HTML), Javascript, Bootstrap (Front-End Framework), Ajax, Web Design, Web Development Tools, Web Design and Development, Cascading Style Sheets (CSS), Web Components, UI Components, Web Development, Front-End Web Development, Mobile Development, JavaScript Frameworks, Test Case
Beginner · Specialization · 3 - 6 Months

University of Cambridge
Skills you'll gain: Criminal Investigation and Forensics, Investigation, Laboratory Testing, Statistical Analysis, Molecular Biology, Specimen Collection, Scientific Methods, Medical Science and Research, General Science and Research, Data Collection, Case Studies, Biology, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Algorithms, Graph Theory, Computational Thinking, Applied Mathematics, Theoretical Computer Science, Operations Research, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: TypeScript, Computational Logic, Scripting Languages, Programming Principles, Web Development Tools, Data Structures, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, Cloud Computing Architecture, DevOps, Virtualization, Cloud Computing, Cloud Infrastructure, Containerization, Infrastructure As A Service (IaaS), Software As A Service, Virtual Networking, Virtual Machines, Platform As A Service (PaaS)
Beginner · Course · 1 - 4 Weeks

Goodwill Industries International
Skills you'll gain: digital literacy, Computer Literacy, Disabilities, Web Content Accessibility Guidelines, Diversity Awareness, Digital Communications, Community Development, Community Outreach, End User Training and Support, Advocacy, Telecommunications, Ethical Standards And Conduct, Data Access, Requirements Analysis
Beginner · Course · 1 - 4 Weeks

Fundação Lemann
Skills you'll gain: AI Personalization, Education Software and Technology, Learning Management Systems, Digital pedagogy, Real Time Data, User Accounts, Data Analysis Software
Mixed · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Public Health, Community Health, Health Policy, Public Health and Disease Prevention, Health Promotion, Media and Communications, Infectious Diseases, Advocacy, Data Collection, Injury Prevention, Nutrition and Diet, Child Health
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Health Technology, Telehealth, Health Systems, Healthcare Industry Knowledge, Health Care, Medicaid, Medical Terminology, Health Policy, Entrepreneurship, Payment Systems, Medicare, Social Determinants Of Health, Value-Based Care, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

CVS Health
Skills you'll gain: Transaction Processing, Retail Sales, Retail Store Operations, Cash Register Operation, Greeting Customers, Customer Inquiries, Customer Service, Teamwork, Data Entry, Customer Relationship Building, Point of Sale, E-Commerce, Order Management Systems, Professionalism, Payment Processing and Collection, Communication, Time Management, Social Media
Beginner · Course · 1 - 3 Months