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.

Skillshare
Skills you'll gain: Adobe After Effects, Video Editing, Videography, Post-Production, Video Production, TikTok, Color Matching, Storytelling, Photo/Video Production and Technology, Data Storage, Motion Graphics, Animations, Storyboarding, Timelines, Image Quality, Ideation, Content Creation, Multimedia, Organizational Skills, File Management
Beginner · Specialization · 3 - 6 Months

Peking University
Skills you'll gain: C# (Programming Language), Object Oriented Programming (OOP), Microsoft Visual Studio, C++ (Programming Language), Computer Programming, Extensible Markup Language (XML), .NET Framework, Database Management, Java, UI Components, Graphical Tools, Network Model, Data Structures, Image Analysis
Intermediate · Course · 3 - 6 Months

AI CERTs
Skills you'll gain: Threat Modeling, Security Testing, Security Engineering, Cybersecurity, Data Security, Blockchain, Threat Detection, Cryptography, Network Security, Security Strategy, Exploit development, Vulnerability Assessments, Transaction Processing, Regulation and Legal Compliance
Advanced · Course · 1 - 3 Months

Skills you'll gain: 3D Modeling, 3D Assets, Virtual Environment, Visualization (Computer Graphics), Computer Graphics, Architectural Design, Creative Design, Design Elements And Principles, Performance Tuning, Aesthetics
Advanced · Course · 3 - 6 Months

Skills you'll gain: Animation and Game Design, Animations, Video Game Development, User Interface (UI) Design, Computer Graphic Techniques, Visualization (Computer Graphics), Game Design, Python Programming, Computer Graphics, Image Analysis, Program Development, Peripheral Devices, Debugging
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Cloud Computing, Cloud Services, Cloud Technologies, Cloud Infrastructure, Cloud Computing Architecture, Public Cloud, Infrastructure As A Service (IaaS), Serverless Computing, Amazon Web Services, Virtual Machines, Hybrid Cloud Computing, Software As A Service, Private Cloud, Microsoft Azure, Platform As A Service (PaaS), Scalability
Beginner · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Social Media, Social Media Marketing, Target Audience, Social Media Strategy, Digital Transformation, Professional Networking, Marketing Strategies, Social Network Analysis, Content Strategy, Market Analysis
Mixed · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Unity Engine, Video Game Development, Agentic systems, Generative AI Agents, Game Design, Artificial Intelligence and Machine Learning (AI/ML), Animation and Game Design, Artificial Intelligence, Machine Learning Methods, Generative AI, Deep Learning, Game Theory, Design and Product, Design, Real Time Data
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Incident Response, Business Continuity, Disaster Recovery, Security Controls, Configuration Management, Governance, Cybersecurity, Security Management, Computer Security Incident Management, Cyber Attacks, Computer Security Awareness Training, Information Assurance, Data Security, Infrastructure Security, Risk Management Framework, Event Monitoring, Encryption, Role-Based Access Control (RBAC), Authorization (Computing)
Beginner · Specialization · 3 - 6 Months

Northwestern University
Skills you'll gain: Machine Controls, Control Systems, Artificial Intelligence, Automation, Graph Theory, Algorithms, Virtual Environment, Simulation and Simulation Software, Mathematical Modeling, Data Structures, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: UI Components, Swift Programming, Apple iOS, User Interface (UI), Mobile Development, Application Development, Cross Platform Development, User Interface and User Experience (UI/UX) Design, Application Programming Interface (API), Animations, Typography, Data Modeling
Intermediate · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Image Analysis, Digital Communications, Computer Vision, Visualization (Computer Graphics), Medical Imaging, Electrical and Computer Engineering, Telecommunications, Spatial Analysis, Matlab, Mathematical Modeling, Color Theory, Applied Mathematics
Mixed · Course · 1 - 3 Months