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.

Sage Publications
Skills you'll gain: Human Resources, Human Resources Management and Planning, Human Resource Strategy, Employee Relations, Human Capital, Labor Relations, Workforce Development, Human Resources Information System (HRIS), HR Tech, Human Resource Policies, Human Resources Software, Recruitment Strategies, Performance Appraisal, Talent Recruitment, Employee Performance Management, Talent Management, Diversity Equity and Inclusion Initiatives, Employee Engagement, Organizational Strategy, Strategic Leadership
Beginner · Course · 3 - 6 Months

Coursera
Skills you'll gain: Java, Java Programming, Algorithms, Computational Thinking, Object Oriented Programming (OOP), Functional Design, Development Environment
Beginner · Guided Project · Less Than 2 Hours

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Software Design Patterns, Object Oriented Programming (OOP), Software Design, Object Oriented Design, Java, Java Programming, Program Development, Computer Programming, Graphical Tools, User Interface (UI), Simulations
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Java, Application Development, Java Programming, Software Engineering, Microsoft Visual Studio, Data Structures, Programming Principles, Algorithms
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Identity and Access Management, Google Cloud Platform, Cloud Infrastructure, Infrastructure As A Service (IaaS), Cloud Computing, Cloud Solutions, Cloud Engineering, Cloud Services, Cloud Computing Architecture, Data Storage Technologies, Cloud Management, Data Storage, Cloud Security, Role-Based Access Control (RBAC), Capacity Management, System Monitoring, Application Performance Management, NoSQL
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Eclipse (Software), File I/O, Test Tools, File Management, Cascading Style Sheets (CSS), Extensible Markup Language (XML), Test Automation, Extensible Languages and XML, Computer Programming, Development Environment, Integrated Development Environments, Software Testing, Test Script Development, Test Case, Data Structures
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Java, Data Structures, File I/O, Java Programming, Data Access, Data Cleansing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Node.JS, Server Side, Event-Driven Programming, Javascript, Software Architecture, Web Applications, API Design, Microservices, Software Design Patterns, Dependency Analysis, Maintainability, Interoperability, Package and Software Management, Software Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Development Environment, Program Development, C++ (Programming Language), Debugging, Programming Principles, Computer Programming Tools, Integrated Development Environments, Computer Programming, Data Management, Computational Logic
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Financial Modeling, Investment Banking, Financial Statement Analysis, Financial Statements, Financial Data, Financial Analysis, Finance, Business Valuation, Cash Flows, Mergers & Acquisitions, Financial Forecasting, Analysis, Cash Flow Forecasting, Capital Markets, Corporate Finance, Benchmarking, Equities
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Java Programming, Data Management, Secure Coding, Theoretical Computer Science, Programming Principles, Other Programming Languages, Performance Tuning, Computer Programming
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: TypeScript, Development Environment, Programming Principles, Javascript, Debugging, Integrated Development Environments, Scalability, Data Structures, Object Oriented Programming (OOP), Software Development, Software Development Tools, Node.JS, Application Development, Front-End Web Development, Software Engineering, Web Development, Configuration Management
Beginner · Course · 1 - 4 Weeks