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.

Skills you'll gain: Oracle Databases, Database Administration, Relational Databases, Database Management Systems, Database Architecture and Administration, Data Import/Export, Patch Management, Memory Management, Database Systems, Multi-Tenant Cloud Environments, Database Software, Database Management, Operational Databases, Software Installation, Performance Tuning, Server Administration, Data Maintenance, Query Languages, User Accounts, System Configuration
★ 4.7 (12) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Modeling, Statistical Machine Learning, Data Science, Statistical Methods, Classification And Regression Tree (CART), Statistical Analysis, Model Evaluation, Regression Analysis, Predictive Modeling, R Programming, Statistical Inference, Logistic Regression, Model Training, Machine Learning, Classification Algorithms, Supervised Learning, Unsupervised Learning, Machine Learning Algorithms
★ 4.1 (18) · Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Health Disparities, Health Equity, Social Justice, Community Health, Social Determinants Of Health, Public Health, Medicaid, Health Systems, Healthcare Industry Knowledge, Diversity Awareness, Anthropology, Diversity Equity and Inclusion Initiatives, Social Sciences, Health Policy, Health Care Procedure and Regulation, Sociology, Medicare, Diversity Programs, Healthcare Ethics, Community Organizing
★ 4.6 (24) · Beginner · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Object Oriented Programming (OOP), Python Programming, Programming Principles, Computer Programming, Development Environment, Software Installation, Scripting, Computational Logic, Program Development
★ 4.1 (13) · Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Linux, Linux Administration, Linux Commands, File Management, Linux Servers, User Accounts, Operating System Administration, File Systems, OS Process Management, Unix Shell, Command-Line Interface, User Provisioning, General Networking, Shell Script, Operating Systems, Remote Access Systems, Scripting, Dataflow, System Monitoring
★ 4.6 (10) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Dashboard Creation, Dashboard, Data Modeling, Business Intelligence, Data Access, Microsoft Copilot, Data Integration, Interactive Data Visualization, Data-Driven Decision-Making, Performance Reporting, Data Transformation, Data Cleansing, ChatGPT, Model Optimization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Cloud, Oracle Databases, Oracle Cloud Applications, Data Infrastructure, Data Architecture, Data Migration, Database Administration, Database Software, Data Lakes, Database Architecture and Administration, Data Integration, NoSQL, Database Management, Cloud Management, MySQL, Cloud Deployment, Data Security, Security Controls, Machine Learning Methods
★ 4.6 (8) · Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Java, Object Oriented Programming (OOP), Data Structures, Java Programming, Object Oriented Design, Event-Driven Programming, Computer Programming, Application Design, Programming Principles, Application Development, File I/O, User Interface (UI), User Interface (UI) Design, Development Environment, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Payroll Processing, Payroll Administration, Accounting Software, Financial Reporting, Payroll Systems, Payroll, Business Reporting, Accounting, General Accounting, Management Reporting, Standard Accounting Practices, Accounting Systems, Accounting and Finance Software, Tax Management, Workflow Management, Vendor Management, Accounts Payable, Small Business Accounting, Accounting Records, Collaborative Software
★ 5 (22) · Beginner · 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
★ 4.5 (39) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Wrangling, Data Integration, Data Manipulation, JSON, Data Transformation, Relational Databases, R (Software), Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Data Structures, File I/O, Application Programming Interface (API)
★ 4.7 (51) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Data Entry, HR Tech, Data-Driven Decision-Making, Dashboard, Human Resources Information System (HRIS), Dashboard Creation, Microsoft Copilot, Data Presentation, Power BI, Data Validation, Business Reporting, Change Management, Peer Review, Generative AI
Intermediate · Course · 3 - 6 Months