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.

Skills you'll gain: Ajax, Build Tools, Object Oriented Design, Test Script Development, Web Development Tools, Software Design Patterns, Test Data, Scripting, Test Tools, Data Structures, Package and Software Management, Code Reusability, File I/O, Data Access, Automation, Cascading Style Sheets (CSS)
Intermediate · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Debugging, Java, Teaching, Java Programming, Computer Programming, Programming Principles, Computational Logic, Computational Thinking, Education Software and Technology, Digital pedagogy
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Java Programming, Java, Computer Programming, Record Keeping
Intermediate · Guided Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: Image Analysis, Tensorflow, Transfer Learning, Convolutional Neural Networks, Computer Vision, Fine-tuning, Keras (Neural Network Library), JavaScript Frameworks, JSON, Model Deployment, Applied Machine Learning, Javascript, Machine Learning Methods, Model Training, Artificial Neural Networks, Data Processing, Real Time Data, Web Applications, Data Capture, Machine Learning
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, JSON, User Interface (UI) Design, Color Theory, Cascading Style Sheets (CSS), User Interface (UI), HTML and CSS, Restful API, Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Event-Driven Programming, Web Design, Typography, API Design, Web Applications, User Interface and User Experience (UI/UX) Design, Application Programming Interface (API), React.js, Javascript, Web Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Test Script Development, Test Automation, Browser Compatibility, System Testing, Test Tools, Object Oriented Programming (OOP), Continuous Delivery, Test Data, Java Programming, Java, Test Case
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Software Design Patterns, Software Design, Software Engineering, Application Security, Object Oriented Design, Software Architecture, Software Quality (SQA/SQC), Threat Modeling, Maintainability, Code Coverage, Application Deployment, Continuous Deployment, Continuous Delivery, Software Testing, Continuous Integration, CI/CD, Test Driven Development (TDD), Software Documentation, Build Tools, Technical Documentation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Web Development, HTML and CSS, Web Design and Development, Javascript, Web Applications, Web Presence, Front-End Web Development, Web Content, Responsive Web Design, Web Design
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Model View Controller, Spring Framework, Restful API, Spring Boot, Web Services, Frontend Integration, JSON, YAML, Web Applications, Configuration Management, Angular, Java Programming, Software Architecture, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Application Programming Interface (API), Authentications, Test Automation, JSON, Security Testing, Authorization (Computing), Java Programming, Scenario Testing, Java, Test Tools, Back-End Web Development
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Android Development, Android (Operating System), Mobile Development, Software Design, User Interface (UI) Design, Java Programming, Data Access, Software Architecture, Databases, Service Management
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Java Programming, Java, OS Process Management, Memory Management, Data Sharing
Intermediate · Course · 1 - 4 Weeks