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: Closing (Sales), Sustainable Business, Sales, Professional Development, Customer Relationship Building, Sales Strategy, Professionalism, Persuasive Communication, Emotional Intelligence, Influencing, Adaptability, Data Centers, Customer Insights, Interviewing Skills, Public Speaking, Negotiation, Account Management, Customer Relationship Management, Lead Generation, Digital Content
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: JSON, Data Structures, Algorithms, Web Development Tools, Javascript, Pseudocode, Development Environment, Integrated Development Environments, Computer Programming, Application Programming Interface (API), Debugging, HTML and CSS, Object Oriented Programming (OOP), Computational Thinking, Performance Tuning, Solution Design
Beginner · Specialization · 1 - 3 Months

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 · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Docker (Software), Network Troubleshooting, Containerization, CI/CD, Application Deployment, Cloud Deployment, YAML, Scalability, Cloud Computing Architecture, Virtual Networking, Role-Based Access Control (RBAC), Network Monitoring, System Monitoring, Configuration Management, Debugging, Data Persistence
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computer Hardware, Operating Systems, Desktop Support, Databases, Hardware Troubleshooting, Information Technology, Technical Support, Computer Systems, System Configuration, Information Systems Security, General Networking, Networking Hardware, Application Deployment, Wireless Networks, Security Awareness, Software Installation, Computer Networking, Computer Security Awareness Training, Data Storage, Peripheral Devices
Beginner · Course · 3 - 6 Months

Skills you'll gain: Email Automation, Agentic Workflows, AI Workflows, Multimodal Prompts, Tool Calling, Calendar Management, Machine Learning Methods, Scheduling, AI Security, Text Mining, Classification Algorithms, JSON
Intermediate · Course · 1 - 3 Months

Skills you'll gain: User Feedback, Employee Surveys, Customer Insights, Customer experience improvement, Microsoft 365, Market Research, User Research, Target Audience, Key Performance Indicators (KPIs), Data Analysis Software, Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Communication, Critical Thinking, Problem Solving, Interpersonal Communications, Computer Programming, Computer Science, Programming Principles, Planning, Algorithms, Data Structures, Stress Management, Adaptability
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Financial Modeling, Entrepreneurial Finance, Financial Forecasting, Capital Budgeting, Entrepreneurship, Cash Flow Forecasting, Financial Data, Financial Analysis, Business Modeling, Finance, Negotiation, Investments, Microsoft Excel
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Applications, Javascript, Web Design, Web Development, Front-End Web Development, Animation and Game Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Construction Engineering, Building Codes, Structural Engineering, Structural Analysis, Engineering Analysis, Construction, Engineering Calculations, Simulation and Simulation Software, Finite Element Methods, Civil Engineering, Construction Management, Engineering Practices, Environmental Monitoring, Safety Standards, Architecture and Construction, System Monitoring, Failure Analysis, Engineering Design Process, Engineering Drawings
Advanced · Specialization · 3 - 6 Months