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.

Universidad Nacional Autónoma de México
Skills you'll gain: Energy and Utilities, Equipment Design, Radiation Protection, Waste Minimization, Plant Operations and Management, Thermal Management, Materials science, Production Process, Manufacturing Processes, Process Engineering, Chemical Engineering, Engineering Design Process, Process Control, Facility Management, Engineering Calculations, Control Systems, Environmental Engineering, Cost Estimation, Chemistry, Natural Resource Management
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Unified Modeling Language, Object Oriented Programming (OOP), Object Oriented Design, Test Driven Development (TDD), Software Design Patterns, Software Design, Programming Principles, Program Development, Development Testing, Process Driven Development, Computer Programming, Software Development Methodologies, Distributed Computing
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Bioinformatics, R (Software), Molecular Biology, Data Analysis Software, Statistical Analysis, Statistical Methods, Analysis, Command-Line Interface, Data Processing, Linux Commands, Linux
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Machine Learning Methods, Supervised Learning, Classification Algorithms, Decision Tree Learning, Data Science, Machine Learning Algorithms, Data Analysis, Machine Learning, Correlation Analysis, Bayesian Network, Algorithms, Artificial Neural Networks, Model Evaluation
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Computer Programming, Programming Principles, Data Import/Export, Data Structures, Python Programming, Computer Science, Data Storage
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Javascript and jQuery, jQuery, Responsive Web Design, Web Development, Version Control, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Hypertext Markup Language (HTML), HTML and CSS, Web Frameworks, GitHub, Web Applications, Javascript, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Network Architecture, Network Infrastructure, Application Frameworks
Build toward a degree
Beginner · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: Microsoft PowerPoint, Microsoft Teams, Microsoft Excel, Spreadsheet Software, Microsoft Word, Document Management, Taking Meeting Minutes, Business Management, Business Communication, Editing
Beginner · 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
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Regression Analysis, Data Science, Machine Learning Methods, Statistical Machine Learning, Data-Driven Decision-Making, R Programming, Statistical Inference, Applied Machine Learning, Machine Learning, Statistical Methods, R (Software), Statistical Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cost Management, Stakeholder Communications, Cost Estimation, Project Management, Risk Management, Scope Management, Project Coordination, Project Controls, Stakeholder Analysis, Risk Management Framework, Project Closure, Project Implementation, Requirements Management, Risk Mitigation, Project Schedules, Risk Analysis, Program Management, Work Breakdown Structure, Timelines
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Financial Statements, Financial Modeling, Business Valuation, Financial Analysis, Financial Statement Analysis, Income Statement, Gross Profit, Microsoft Excel, Accounting, Bookkeeping, Balance Sheet, Investment Management, General Accounting, Business Metrics, Finance, Cash Flows, Strategic Decision-Making, Portfolio Risk, Excel Formulas, Revenue Forecasting
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Financial Statement Analysis, Financial Statements, Operations Management, Financial Analysis, Selling Techniques, Operations, Supply Chain, Business Operations, Operational Efficiency, Sales, Balance Sheet, Sales Process, Business Management, Logistics Management, Marketing, Advertising, Marketing Strategies, Process Design, Business Economics, Lean Methodologies
Beginner · Course · 1 - 4 Weeks