Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

University of Maryland, College Park
Skills you'll gain: Empathy & Emotional Intelligence, Emotional Intelligence, Conflict Management, Team Building, Personal Attributes, Cognitive flexibility, Dealing With Ambiguity, Team Leadership, Organizational Change, Team Performance Management, Leadership and Management, Communication, Team Management, Organizational Leadership, Resilience, Collaboration, Behavior Management, Business Communication, Stress Management, Critical Thinking
★ 3.9 (15) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Agentic Workflows, Generative AI Agents, Agentic systems, AI Workflows, AI Enablement, Responsible AI, Artificial Intelligence, AI Security, Technical Communication, Automation, AI Integrations, Workflow Management, Risk Analysis, Business Workflow Analysis, Process Mapping, Governance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Programming Interface (API), Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), Back-End Web Development, Eclipse (Software), Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Financial Reporting, Bookkeeping, Ledgers (Accounting), Accounting, Workflow Management, Management Reporting, Accounting Records, Accounting Software, Business Reporting, Small Business Accounting, Accounting Systems, Inventory Management, Accounting and Finance Software, Financial Accounting, Inventory Management System, Inventory Accounting, Expense Reports, Project Accounting, Expense Management, Vendor Management
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: AI Personalization, Personalized Service, Operations Support Systems, Customer Analysis, Telecommunications, Customer Retention, Network Performance Management, Responsible AI, Wireless Networks, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Network Architecture, Computer Networking, Emerging Technologies, Digital Communications, Generative AI Agents, Generative AI, Network Protocols, System Design and Implementation, Communication
★ 4.5 (21) · Advanced · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Power Platform, Power BI, Microsoft Power Automate/Flow, Power Platform Architecture & Technical Design, Product Automation, Microsoft Development Tools, Business Intelligence Software, Application Development, No-Code Development, Generative AI Agents, Dashboard Creation, Systems Integration
★ 4.4 (44) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, FinTech, Payment Systems, Governance, Financial Services, Financial Regulation, Ledgers (Accounting), Financial Inclusion, Banking Services, Financial Systems, Payment Processing, Innovation, Accounting, Emerging Technologies, Digital Assets, Regulatory Requirements, Financial Management, Law, Regulation, and Compliance
★ 4.7 (191) · Beginner · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Infectious Diseases, Infection Control, Epidemiology, Public Health and Disease Prevention, Preventative Care, Public Health, Personal protective equipment, Diagnostic Tests, Hospital Medicine, Intensive Care Medicine, Patient Treatment, Pathology, Microbiology
★ 4.5 (362) · Beginner · Course · 1 - 3 Months

Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Mobile Development, Usability, User Interface and User Experience (UI/UX) Design, Data Store, Development Testing, AI Personalization, Wireframing, Data Modeling, User Story, User Interface (UI) Design, Software Testing, Application Programming Interface (API), Web Content Accessibility Guidelines, AI Enablement, Integrated Development Environments, Software Design Patterns, Debugging
★ 4.5 (35) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Model Evaluation, Unsupervised Learning, Deep Learning, Machine Learning Methods, Autoencoders, Anomaly Detection, Applied Machine Learning, Machine Learning Algorithms, Model Training, Machine Learning, Machine Learning Software, Supervised Learning, Decision Tree Learning, Predictive Modeling, Data Validation, Classification Algorithms, Random Forest Algorithm, Data Import/Export, Model Optimization, Data Manipulation
★ 4.5 (74) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Cloud Development, Continuous Deployment, Development Environment, Application Deployment, Cloud Applications, Cloud Deployment, Docker (Software), Containerization, Microsoft Development Tools, Cloud Hosting, ASP.NET, Platform As A Service (PaaS), Software Development, Scalability, Microsoft Visual Studio, Web Applications, Integrated Development Environments
★ 4.7 (35) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Penetration Testing, Threat Management, Threat Detection, Cyber Security Assessment, Cybersecurity, Cyber Security Strategy, Cyber Operations, Vulnerability Scanning, Cyber Attacks, Computer Security, Vulnerability Assessments, Security Strategy, Cyber Security Policies, Network Security, Network Analysis, Network Protocols
★ 4.8 (16) · Intermediate · Course · 1 - 4 Weeks