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.

Simplilearn
Skills you'll gain: C# (Programming Language), Restful API, Unity Engine, Application Programming Interface (API), Object Oriented Programming (OOP), API Design, .NET Framework, Object Oriented Design, C++ (Programming Language), Video Game Development, ASP.NET, Computer Programming, Object-Relational Mapping, Web Services, Application Development, Game Design, Software Design Patterns, Database Management, Program Development, Programming Principles
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: UI Components, React.js, Javascript, JavaScript Frameworks
★ 5 (6) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Model Evaluation, Model Deployment, Model Training, Decision Tree Learning, Data Preprocessing, Java Programming, Classification Algorithms, Predictive Modeling, Random Forest Algorithm, Applied Machine Learning, Java, Program Evaluation, Machine Learning Methods, Machine Learning Algorithms, Machine Learning, Algorithms, Program Implementation, Business Development
Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Node.JS, JSON, Server Side, Web Development Tools, Back-End Web Development, JavaScript Frameworks, Web Servers, Application Programming Interface (API), Restful API, Javascript, Web Development, Package and Software Management, Servers, Network Protocols
★ 4.5 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Maven, Build Tools, Eclipse (Software), CI/CD, Java, Continuous Integration, Integrated Development Environments, Dependency Analysis, Extensible Markup Language (XML)
Beginner · Course · 1 - 4 Weeks
Coursera
Skills you'll gain: Model Evaluation, MLOps (Machine Learning Operations), Classification Algorithms, Model Deployment, Machine Learning Software, Applied Machine Learning, Maintainability, Machine Learning Algorithms, Java, Software Design Patterns, Logistic Regression, Business Metrics, Benchmarking, Matrix Management, Business
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Java, Object Oriented Design, Data Validation, Test Script Development, Object Oriented Programming (OOP), Test Automation, Application Design, Application Development, Software Testing, Test Case, Data Modeling, Verification And Validation, User Interface (UI), Business Logic, Maintainability, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Web Design, Event-Driven Programming, Web Design and Development, Development Environment, Web Development, Integrated Development Environments, Scripting, Web Applications, Hypertext Markup Language (HTML), Programming Principles, Graphic and Visual Design, Front-End Web Development, Interactive Design, Animations, Typography, Color Theory
★ 5 (7) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Database Design, Database Development, Database Application, Java Programming, Full-Stack Web Development, Web Development, Server Side, Control Panels, Role-Based Access Control (RBAC), Data Access, User Accounts, Data Validation
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Data Persistence, Event-Driven Programming, HTML and CSS, Web Applications, Front-End Web Development, Semantic Web, Javascript, Browser Compatibility, Secure Coding, Web Content Accessibility Guidelines, Data Storage Technologies, Application Security, Data Validation, Data Management
★ 3.8 (8) · Beginner · Course · 1 - 3 Months

Skills you'll gain: React.js, Continuous Deployment, Application Deployment, Cloud Deployment, Web Applications, UI Components, Javascript, Bootstrap (Front-End Framework), JavaScript Frameworks, Development Environment, User Interface (UI), Cascading Style Sheets (CSS), Application Programming Interface (API)
★ 5 (10) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Java, Java Programming, Test Script Development, Test Automation, Software Development, Development Testing, Program Development, Application Design, Software Testing, Application Development, Programming Principles, Data Validation, User Interface (UI), Maintainability, Software Design, Debugging, Data Integrity
Beginner · Course · 1 - 4 Weeks