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.

Northeastern University
Skills you'll gain: Algorithms, Graph Theory, Computational Thinking, Programming Principles, Pseudocode, Theoretical Computer Science, Data Structures, Computer Programming, Performance Tuning
Mixed · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, TypeScript, Angular, Test Case, Software Testing, JavaScript Frameworks, Testability, Development Testing, Code Coverage, Integration Testing, Javascript, Node.JS, Debugging, Mockups, Simulations
Intermediate · Specialization · 1 - 4 Weeks

Packt
Skills you'll gain: Node.JS, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, File Management, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Prompt Engineering Tools, LLM Application, No-Code Development, Tool Calling, Generative AI Agents, ChatGPT, OpenAI, Automation, Application Development, Application Programming Interface (API), Data Integration, Software Installation
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Salesforce Development, Salesforce, No-Code Development, UI Components, Data Import/Export, Process Driven Development, Microservices, Business Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Real Time Data, Serverless Computing, Cloud Applications, Virtual Machines, Cloud Computing Architecture, Microservices, Event-Driven Programming, Kubernetes, Solution Architecture, Infrastructure As A Service (IaaS), Cloud Services, Containerization, API Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, jQuery, JSON, Javascript and jQuery, Debugging, Application Programming Interface (API), Web Development Tools, Web Applications, Javascript, Game Design, UI Components, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), User Interface (UI) Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unix Commands, Unix Shell, Unix, Shell Script, Bash (Scripting Language), Linux Commands, Command-Line Interface, Linux, Scripting, Scripting Languages, Data Pipelines, File Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Public Cloud, Cloud Computing Architecture, Cloud Management, Cloud Storage, Cost Management, Compliance Management, Risk Management
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Self Service Technologies, Process Analysis, Process Improvement, Customer experience improvement, Process Flow Diagrams, Workflow Management, Personalized Service, Cost Control, Cost Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, Debugging, Computer Programming, Application Design, Computer Science, Program Development, Object Oriented Programming (OOP), Software Development, Data Management, Algorithms, Software Architecture, Software Development Methodologies
Beginner · Course · 3 - 6 Months

Skills you'll gain: Merchandising, Product Assortment, E-Commerce, Web Applications, Scalability, Business Technologies, Technology Solutions, Systems Integration, Application Programming Interface (API), Javascript
Beginner · Course · 1 - 4 Weeks