Java courses can help you learn object-oriented programming, data structures, exception handling, and multithreading concepts. 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.
Madecraft
Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Web Development, Javascript, Semantic Web, Web Content Accessibility Guidelines, Browser Compatibility, Development Environment, Web Content, GitHub, Web Analytics and SEO, Software Installation, Application Deployment
Beginner · Course · 1 - 3 Months

Skills you'll gain: Algorithms, Javascript, Data Structures, Theoretical Computer Science, Computational Thinking, Performance Tuning, Computer Programming, Solution Design, Debugging
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Javascript, Scripting, Scripting Languages, Programming Principles, Web Development, Data Structures, Web Development Tools, Hypertext Markup Language (HTML), Web Design and Development, Node.JS, Development Environment, Computer Programming, Front-End Web Development, Web Applications, Object Oriented Programming (OOP), Program Development, Functional Design, Event-Driven Programming, Frontend Performance, Frontend Integration
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Model Evaluation, Decision Tree Learning, Classification Algorithms, Model Training, Applied Machine Learning, Java, Java Programming, Model Optimization, Predictive Modeling, Machine Learning Software, Supervised Learning, Technical Communication, Fine-tuning, Tree Maps, MLOps (Machine Learning Operations), Machine Learning Algorithms, Machine Learning, Algorithms
Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Applications, Web Components, Javascript, Program Development, Other Programming Languages, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model View Controller, Software Design Patterns, Java Platform Enterprise Edition (J2EE), Java, Web Applications, Java Programming, Code Reusability, Back-End Web Development, Server Side, Data Access, Integrated Development Environments, Databases, Forecasting, Data Science, Authentications, Financial Data
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Test Driven Development (TDD), Test Script Development, Test Case, Web Development Tools, Development Testing, Unit Testing, Software Testing, Browser Compatibility, Testability, Test Tools, JavaScript Frameworks, Javascript, Mockups, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, Frontend Performance, Scripting, Front-End Web Development, Real Time Data, Data Integrity, Data Storage, Maintainability, Performance Tuning, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: React.js, UI Components, User Interface (UI), JavaScript Frameworks, Web Applications, User Accounts, Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Event-Driven Programming, Authorization (Computing), Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Front-End Web Development, Web Design and Development, HTML and CSS, Web Design, User Interface (UI), Web Development, User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), UI Components, Cascading Style Sheets (CSS), User Interface (UI) Design, Javascript, Animations, Development Environment
Beginner · Course · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Big Data, Application Deployment, Social Network Analysis, Data Processing, Distributed Computing, Java, Text Mining, Graph Theory
Mixed · Course · 1 - 3 Months
Coursera
Skills you'll gain: Classification And Regression Tree (CART), Decision Tree Learning, Classification Algorithms, Java, Java Programming, Machine Learning Algorithms, Machine Learning Methods, Algorithms, Machine Learning, Data Structures, Analysis, Software Engineering
Advanced · Course · 1 - 4 Weeks