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.

Simplilearn
Skills you'll gain: Requirements Management, Project Management, Risk Management, Project Planning, Data Visualization, Agile Project Management, Microsoft Excel, Solution Design, Cost Management, Project Management Office (PMO), Business Analysis, Excel Formulas, Requirements Elicitation, Stakeholder Management, Scope Management, Pivot Tables And Charts, Dashboard, Business Analytics, Data Analysis, Data Validation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Swift Programming, Apple Xcode, iOS Development, Data Structures, Programming Principles, Mobile Development, Application Development, Object Oriented Programming (OOP), Development Environment, Computer Programming, Web Development
Beginner · Course · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Data Modeling, Business Intelligence, Microsoft Excel, Excel Formulas, Pivot Tables And Charts, Data Analysis Software, Data Manipulation, Time Series Analysis and Forecasting
Beginner · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Payroll, Payroll Administration, Payroll Processing, Payroll Tax, Labor Compliance, Labor Law, Compensation Management, Benefits Administration, Employee Onboarding, Tax Compliance, Problem Solving, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: SQL, Relational Databases, Microsoft Copilot, Database Management, Transaction Processing, Query Languages, Database Design, Databases, Object-Relational Mapping, Performance Tuning, Data Integrity, Data Modeling, Data Security
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Performance Tuning, Django (Web Framework), Authentications, PostgreSQL, Scalability, Application Deployment, Cloud Hosting, User Accounts, Application Security, Python Programming
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Software Documentation, Java, Back-End Web Development, Application Programming Interface (API), Secure Coding, Databases, Data Persistence, Dependency Analysis
Beginner · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Infectious Diseases, Epidemiology, Public Health and Disease Prevention, Public Health, Health Disparities, Cardiology, Social Determinants Of Health, Chronic Diseases, Microbiology, Health Care, Community Health, Health Education, Health Systems, Socioeconomics, Preventative Care, Health Policy, Health Assessment, Trend Analysis, Immunology, Medical Science and Research
Beginner · Specialization · 1 - 3 Months

Edureka
Skills you'll gain: Data Governance, Governance, Data Management, Compliance Management, Data Architecture, General Data Protection Regulation (GDPR), Data Strategy, Regulatory Compliance, Data Security, Cloud Security, Metadata Management, Information Management, Regulatory Requirements, Data Integrity, Data Quality, Data Access, Cloud Computing, Risk Management
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Restful API, Web Services, Hypertext Markup Language (HTML), HTML and CSS, Java Platform Enterprise Edition (J2EE), Software Design, Java, Extensible Markup Language (XML), Application Programming Interface (API), API Design, JSON, Software Architecture, Web Design and Development, Web Applications, Front-End Web Development, Web Development
Beginner · Specialization · 1 - 3 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Web Applications, Javascript, Web Development, Node.JS, Security Controls, Web Servers, Hypertext Markup Language (HTML), Java Programming
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Power Electronics, Electrical Engineering, electromagnetics, Electronic Components, Mathematical Modeling, Thermal Management, Engineering Analysis, Engineering Design Process, Engineering Calculations, Applied Mathematics
Intermediate · Course · 1 - 4 Weeks