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: Data Storytelling, Dashboard, Data Visualization, Key Performance Indicators (KPIs), System Monitoring, Performance Analysis, Data Visualization Software, Business Intelligence, Performance Metric, Continuous Monitoring, Budget Management, Cost Management, Decision Making
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: OSI Models, Network Security, TCP/IP, Network Architecture, Network Protocols, General Networking, Network Routing, Network Routers, Computer Networking, Network Infrastructure, Routing Protocols, Network Model, Cryptography, Web Applications
Build toward a degree
Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: File I/O, Data Structures, Data Manipulation, Software Installation, Python Programming, Data Processing, Development Environment, Data Storage
Mixed · Course · 1 - 3 Months

Skills you'll gain: Recurrent Neural Networks (RNNs), Natural Language Processing, Embeddings, Hugging Face, Deep Learning, Large Language Modeling, Transfer Learning, Convolutional Neural Networks, Text Mining, Semantic Web, Tensorflow, PyTorch (Machine Learning Library), Artificial Neural Networks, Python Programming, Cryptography, Classification Algorithms, Probability Distribution, Machine Learning Algorithms, Data Processing, Algorithms
Intermediate · Specialization · 3 - 6 Months

Berklee
Skills you'll gain: Music Theory, Musical Composition, Music, Writing and Editing, Storytelling, Writing, Creativity
Mixed · Course · 1 - 3 Months

New York University
Skills you'll gain: Reinforcement Learning, Financial Trading, Financial Market, Derivatives, Market Liquidity, Finance, Market Dynamics, Risking, Financial Modeling, Market Data, Credit Risk, Machine Learning
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, OSI Models, Network Model, TCP/IP, Networking Hardware, Local Area Networks, Network Protocols, General Networking, Network Architecture, Network Infrastructure, Network Switches, Test Equipment, Test Tools
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, LLM Application, Agentic systems, Tool Calling, LangChain, Artificial Intelligence, Prompt Engineering, Model Evaluation, Context Management, Scenario Testing, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

École normale supérieure
Skills you'll gain: Infographics, Geospatial Mapping, Data Mapping, Graphic and Visual Design, Graphics Software, Color Theory
Beginner · Course · 1 - 3 Months

Skills you'll gain: Service Management, Information Technology Infrastructure Library, IT Management, Service Design, Organizational Structure, Strategic Partnership, Information Management, Supplier Relationship Management, Supplier Management, Vendor Relationship Management, Process Management, People Development, Organizational Strategy, Continuous Improvement Process
Intermediate · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Computer Security Awareness Training, Operating Systems, Computer Literacy, digital literacy, File Management, Data Security, Email Security, Information Technology, Computer Hardware, Computer Networking, Safety and Security
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: TypeScript, Event-Driven Programming, Javascript, Pseudocode, Computational Thinking, JSON, Web Development, Angular, Web Applications, Vue.JS, Data Import/Export, Application Development, Mobile Development, Debugging, Algorithms, Data Structures, Node.JS, Unit Testing, Web Development Tools, JavaScript Frameworks
Beginner · Specialization · 3 - 6 Months