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.

Johns Hopkins University
Skills you'll gain: Rmarkdown, Data Visualization, Statistical Visualization, R (Software), Data Import/Export, Data Visualization Software, R Programming, Tidyverse (R Package), Statistical Reporting, Data Manipulation, Data Wrangling, Data Processing, File Management, Software Installation
★ 4.7 (308) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Medical Billing, Patient Registration, Revenue Cycle Management, Billing, Health Systems, Healthcare Industry Knowledge, Health Care, Insurance, Administration
★ 4.6 (152) · Beginner · Course · 1 - 3 Months

Yonsei University
Skills you'll gain: Global Marketing, Diversity Marketing, Marketing, Strategic Marketing, Consumer Behaviour, Target Market, Marketing Management, Business-To-Consumer, Marketing Strategies, Innovation, Marketing Planning, Promotional Strategies, Marketing Channel, Marketing Strategy and Techniques, Go To Market Strategy, Market Opportunities, Target Audience, Product Marketing, Market Analysis, Customer Analysis
★ 4.7 (341) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Spring Boot, Application Development, API Testing, Java Programming, Web Development, Program Development, Application Frameworks, Software Testing, Test Case, Secure Coding, Development Environment, Model View Controller, Software Development Tools, UI Components, Data Access, Authentications, SQL, Object Oriented Programming (OOP), Data Persistence, User Interface (UI)
★ 4.7 (18) · Intermediate · Specialization · 1 - 3 Months

University of Geneva
Skills you'll gain: Biochemistry, Molecular, Cellular, and Microbiology, Biochemical Assays, Molecular Biology, Cell Biology, Chemistry, Biotechnology, Biological Engineering, Laboratory Research, Laboratory Techniques, Scientific Visualization, Biology, Specimen Labeling
★ 4.6 (172) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, Routing Protocols, UI Components, Code Reusability, JavaScript Frameworks, Front-End Web Development, Frontend Performance, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Frontend Integration, Debugging, Web Development Tools, Web Frameworks, Data Management, Context Management, Javascript, Application Programming Interface (API)
★ 4.7 (263) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Development, HTML and CSS, Web Design and Development, Javascript, Web Presence, Front-End Web Development, Web Content, Responsive Web Design, Web Design
★ 4.3 (141) · Intermediate · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Microsoft Power Platform, Power BI, Microsoft Power Automate/Flow, Dashboard, Data Visualization, Process Design, Business Process Automation, Workflow Management, No-Code Development, Business Process, Generative AI Agents, Data Analysis, Data Modeling, Data Integration, Data Analysis Software, Application Design
★ 4.2 (161) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Qualitative Research, Market Research, Quantitative Research, Data-Driven Decision-Making, Benchmarking, Data Presentation, Descriptive Statistics, Competitive Analysis, Analytical Skills, Research Design, Market Dynamics, Data Collection, Data Literacy, Data Analysis, Customer Analysis, Data Visualization Software, Data Analysis Software, Microsoft Excel, R Programming
★ 4.6 (133) · Intermediate · Specialization · 1 - 3 Months

The World Bank Group
Skills you'll gain: Climate Change Programs, Climate Change Adaptation, Climate Change Mitigation, Sustainable Development, Social Impact, Mitigation, Sustainable Systems, Environmental Policy, Natural Resource Management, Water Resources, Environmental Science, Water Resource Management, Scientific Methods, Policy Analysis, Collaboration, Policy Development
★ 4.7 (478) · Beginner · Course · 1 - 4 Weeks

Shanghai Jiao Tong University
Skills you'll gain: Materials science, Structural Analysis, Engineering, Chemistry, Physics, Manufacturing Processes, Physical Science, Thermal Management, Mechanics, Chemical Engineering, Mathematical Modeling
★ 4.6 (201) · Intermediate · Course · 3 - 6 Months

Lund University
Skills you'll gain: Labor Law, Arbitration, Tax Compliance, Environmental Regulations, Environmental Laws, Case Law, Legal Writing, Legal Research, Law, Regulation, and Compliance, Labor Relations, Labor Compliance, Tax Laws, Regulation and Legal Compliance, Mediation, Litigation and Civil Justice, Commercial Laws, Business, Financial Regulations, Regulatory Compliance, Employee Relations
★ 4.8 (561) · Beginner · Course · 1 - 3 Months