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.

Skillshare
Skills you'll gain: Storyboarding, Animations, Storytelling, Motion Graphics, Multimedia, Musical Composition, Adobe After Effects, Photo/Video Production and Technology, Video Editing, Apple software proficiency, Timelines, Layout Design, Color Theory, Design
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Docker (Software), Containerization, Restful API, User Interface (UI), HTML and CSS, Node.JS, MongoDB, Database Management, Databases, JavaScript Frameworks, Web Applications, Web Development, Web Development Tools, Back-End Web Development, Full-Stack Web Development, Application Development, Javascript, GitHub
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Security Testing, Cybersecurity, Cyber Operations, Information Systems Security, Information Systems Security Assessment Framework (ISSAF), Cyber Security Strategy, Vulnerability Assessments, Cyber Threat Intelligence, Threat Modeling, Exploit development, Exploitation techniques, Cyber Attacks, Cyber Security Policies, Computer Security, Security Controls, Data Security
Intermediate · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Capital Markets, Financial Market, Investment Banking, Securities Trading, Investments, Market Liquidity, Private Equity, Sales, Financial Industry Regulatory Authorities, Business Acumen, Equities, Asset Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Customer experience improvement, Information Technology Infrastructure Library, IT Service Management, Service Management, Continuous Improvement Process, Service Improvement, Agile Methodology, Governance, IT Management, Innovation, Customer Service, Process Improvement and Optimization, Automation
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Web Content Accessibility Guidelines, User Interface (UI), Usability, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, UI Components, Semantic Web, Cascading Style Sheets (CSS), Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Workflow Management, Spreadsheet Software, Project Management Software, Process Design, Data Entry, Excel Formulas, Automation, Data Import/Export, Data Management, Document Management, Collaborative Software, User Accounts
Beginner · Course · 1 - 3 Months

Skills you'll gain: JSON, Application Programming Interface (API), Restful API, Web Services, Javascript, Web Applications, Hypertext Markup Language (HTML), Servers, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Project Management Institute (PMI) Methodology, Project Management Life Cycle
Beginner · Course · 1 - 3 Months

University of Cambridge
Skills you'll gain: Financial Acumen, Variance Analysis, Financial Forecasting, Cash Flows, Financial Analysis, Financial Modeling, Financial Reporting, Cost Estimation, Financial Statements, Return On Investment, Accounting, Project Estimation, Budgeting, Microsoft Excel, Business Modeling
Beginner · Course · 1 - 3 Months

Skills you'll gain: Angular, Development Environment, Program Development, Web Development Tools, JavaScript Frameworks, Javascript, Web Components, Front-End Web Development, Web Development
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: JSON, Restful API, Web Applications, Application Programming Interface (API), Responsive Web Design, Cascading Style Sheets (CSS), Event-Driven Programming, HTML and CSS, Javascript, Back-End Web Development, Frontend Integration, Web Development, Web Services, Real Time Data, Web Development Tools, Game Design, Hypertext Markup Language (HTML), Servers, Software Development
Intermediate · Specialization · 1 - 4 Weeks