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.

Skills you'll gain: Applied Machine Learning, Data Science, Python Programming, Scikit Learn (Machine Learning Library), NumPy, Computational Thinking, Machine Learning Algorithms, Pandas (Python Package), Data Preprocessing, Data Analysis, Exploratory Data Analysis, Programming Principles, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Game Design, Animation and Game Design, Video Game Development, User Interface (UI), UI Components, Debugging, Scripting, C# (Programming Language)
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, iOS Development, User Interface (UI) Design, Android Development, Application Development, JavaScript Frameworks, Data Storage Technologies, Development Environment, Javascript, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux, Ubuntu, Linux Administration, Linux Servers, General Networking, Linux Commands, Operating System Administration, Firewall, Bash (Scripting Language), Unix Commands, Command-Line Interface, File Management, Operating Systems, System Monitoring, Virtual Environment, Virtual Machines, User Accounts, Software Installation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Real Time Data, Dataflow, Data Pipelines, Dashboard, Google Cloud Platform, Data Processing, Data Transformation, Scalability, Performance Tuning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: File I/O, C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), Debugging, Data Structures, C (Programming Language), Development Environment, Software Design Patterns, Computational Thinking, Computer Programming, Programming Principles, Data Persistence, Algorithms, Maintainability, Simulations, Data Management, Prototyping
Intermediate · Specialization · 1 - 3 Months

NIIT
Skills you'll gain: React.js, Front-End Web Development, Systems Development Life Cycle, Application Development, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe InDesign, Layout Design, Color Theory, Multimedia, Typography, Graphic Design, Design, Graphic and Visual Design Software, Design Elements And Principles, Style Guides, Document Management, Digital Publishing
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Artificial Intelligence, Simulations, Object Oriented Programming (OOP), C# (Programming Language), Software Design Patterns, Debugging
Intermediate · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Responsive Web Design, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Web Design and Development, Professional Development, Web Development, Javascript, GitHub
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Story, Backlogs, Scaled Agile Framework, Project Estimation, Sprint Planning, Agile Project Management, Agile Software Development, Scrum (Software Development), Sprint Retrospectives, Agile Methodology, Stakeholder Communications, Team Building, Agile Product Development, Jira (Software), Estimation, Planning, Project Management, Kanban Principles, Product Management, Prioritization
Beginner · Specialization · 3 - 6 Months

Simplilearn
Skills you'll gain: Test Automation, Test Script Development, Software Testing, Scripting, Automation, Software Engineering Tools, Browser Compatibility, Test Case, Scalability
Beginner · Course · 1 - 4 Weeks