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.

Duke University
Skills you'll gain: Debugging, Bioinformatics, Java, Algorithms, Java Programming, Program Development, Programming Principles, Statistical Analysis, Software Design, Computer Programming, Integrated Development Environments, File I/O, Data Processing, Software Documentation, Data Manipulation, Object Oriented Programming (OOP), Data Analysis, Web Scraping, Software Testing, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: API Testing, Restful API, Application Programming Interface (API), Test Script Development, JSON, Data Validation, Test Automation, Test Case, Development Environment, Verification And Validation
Mixed · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Equipment Design, Energy and Utilities, Engineering Design Process, Process Control, Engineering Calculations, Control Systems, Cost Estimation, Mathematical Modeling, Simulation and Simulation Software
Advanced · Course · 1 - 3 Months

Skills you'll gain: Package and Software Management, Software Installation, Memory Management, Build Tools, Programming Principles, Integrated Development Environments
Beginner · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Data Persistence, Software Design Patterns, Maintainability, Memory Management, Programming Principles, Code Reusability, Functional Design, Computer Programming, Oracle Databases, File Systems, Computational Logic, API Design, Data Structures, Software Design, File Management, Data Management
Intermediate · Specialization · 3 - 6 Months

Sage Publications
Beginner · Course · 3 - 6 Months

Skills you'll gain: AWS Identity and Access Management (IAM), Cloud Computing Architecture, Network Architecture, Amazon Web Services, Cloud Infrastructure, Cloud Solutions, IT Security Architecture, Identity and Access Management, Network Planning And Design, Solution Architecture, Security Management, Virtual Networking, Infrastructure Architecture, Network Routing, Network Infrastructure, Cloud Security, Cloud Services, Application Design, Cloud Management, Network Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Financial Statements, Accounting, Generally Accepted Accounting Principles (GAAP), Financial Reporting, Financial Statement Analysis, Financial Accounting, General Accounting, Standard Accounting Practices, Business Reporting, Small Business Accounting, Management Accounting, Partnership Accounting, Business, Equities, Budgeting, Expense Management, Financial Management, Stakeholder Analysis
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Programming Principles, Development Environment, Data Management, Integrated Development Environments, Software Installation, Style Guides
Beginner · Course · 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

Pearson
Skills you'll gain: Java Programming, Java, Program Development, Application Frameworks, Performance Tuning
Intermediate · Course · 1 - 4 Weeks