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: Object Oriented Programming (OOP), C++ (Programming Language), Computer Programming, Programming Principles, Algorithms, Data Structures, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Programmable Logic Controllers, Electrical Wiring, Computational Logic, Control Systems, Automation, Simulation and Simulation Software, Human Machine Interfaces, Communication Systems, Applied Mathematics
Beginner · Course · 1 - 3 Months

Skills you'll gain: JSON, Application Programming Interface (API), Restful API, Web Services, Javascript, Web Applications, Hypertext Markup Language (HTML), Servers, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Sampling (Statistics), Data Cleansing, Statistical Software, Data Transformation, Data Quality, Statistical Analysis, STATA (Software), Statistical Methods, R (Software), Statistical Modeling, R Programming, Regression Analysis, Data Analysis
Mixed · Course · 1 - 3 Months

Skills you'll gain: Computer Programming, Programming Principles, Data Import/Export, Data Structures, Integrated Development Environments, Python Programming, Computer Science
Beginner · Course · 1 - 4 Weeks

Nanjing University
Skills you'll gain: Social Studies, World History, Social Sciences, European History, Economics, Socioeconomics, Sociology, Political Sciences, Economic Development
Mixed · Course · 1 - 3 Months

Maven Analytics
Skills you'll gain: Microsoft Copilot, Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Human Resources Software, Data Manipulation, Data Analysis, Microsoft 365, Data Presentation, ChatGPT, Data Visualization, Artificial Intelligence, Generative AI, Prompt Engineering
Beginner · Course · 1 - 3 Months

Skills you'll gain: Networking Hardware, OSI Models, Network Architecture, Network Protocols, Network Security, TCP/IP, Computer Networking, Local Area Networks, Virtual Private Networks (VPN), Wireless Networks, Network Routing, Wide Area Networks, Network Switches, Virtual Local Area Network (VLAN), Firewall
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Software Documentation, Generative AI, Debugging, ChatGPT, Integrated Development Environments, Development Environment, Python Programming, Prompt Engineering, Software Development, Application Development
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unified Modeling Language, JUnit, Software Testing, Software Engineering, Java, Java Programming, Computer Programming, Unit Testing, Program Development, Software Design, Test Driven Development (TDD), Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Development Environment, Web Development, Computer Programming, Program Development, Other Programming Languages, Software Development Tools
Beginner · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Semantic Web, Query Languages, Data Management, Data Integration, Data Processing, JSON, Data Sharing, Data Mining, Interoperability, Extensible Markup Language (XML), Web Services, Data Modeling
Intermediate · Course · 1 - 4 Weeks