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: HTML and CSS, Hypertext Markup Language (HTML), Web Development Tools, Web Design and Development, Web Development, Cascading Style Sheets (CSS), Web Design, Front-End Web Development, Javascript, Web Applications, Interactive Design, Program Development, JavaScript Frameworks, Full-Stack Web Development, Back-End Web Development
★ 4.6 (2.4K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Memory Management, Software Design Patterns, Functional Design, Maintainability
Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Data Preprocessing, Model Deployment, Apache Mahout, Java, Java Programming, Apache Spark, Classification Algorithms, Machine Learning Software, Machine Learning Methods, Model Training, Applied Machine Learning, Deep Learning, Data Processing, Model Evaluation, Natural Language Processing, Data Cleansing, Machine Learning, Feature Engineering, Fine-tuning, Data Transformation
Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Unit Testing, Data Structures, Java, Java Programming, Software Testing, Program Development, Performance Tuning, Algorithms, Performance Testing, Object Oriented Programming (OOP), Theoretical Computer Science
★ 4.8 (2.3K) · Intermediate · Course · 1 - 3 Months

EDUCBA
★ 4.8 (24) · Advanced · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Django (Web Framework), Ajax, jQuery, Model View Controller, Cascading Style Sheets (CSS), Javascript and jQuery, Hypertext Markup Language (HTML), JSON, HTML and CSS, Linux, Linux Commands, Application Development, Back-End Web Development, Database Application, Web Development, Cloud Deployment, Web Applications, Application Deployment, Javascript, SQL
★ 4.7 (2.5K) · Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Eclipse (Software), Java, Integrated Development Environments, Java Programming, Code Reusability, Functional Design
★ 4.2 (21) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Design, Computer Programming, Code Reusability, Memory Management
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, Java, Android (Operating System), Object Oriented Programming (OOP), Mockups, Java Programming, Data Persistence, Application Deployment, JSON, Web Services, Application Design, Object Oriented Design, Restful API, Mobile Development Tools, Application Development, Data Storage Technologies, Software Design, Instagram
★ 4.6 (1.9K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Responsive Web Design, Bootstrap (Front-End Framework), HTML and CSS, Cascading Style Sheets (CSS), Front-End Web Development, Hypertext Markup Language (HTML), Web Design, Browser Compatibility, Web Content Accessibility Guidelines, Web Development Tools, Web Development, Semantic Web, UI Components, Web Analytics and SEO, Server Side, Animations, Debugging, Javascript, Data Validation
★ 4.7 (1.9K) · Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Hibernate (Java), Object-Relational Mapping, Spring Boot, Restful API, Java, NoSQL, Database Development, Spring Framework, SQL, Database Systems, Databases, Database Design, Application Frameworks, Java Programming, Data Access, Database Management, Relational Databases, Back-End Web Development, Software Development
★ 4.8 (10) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Communication Systems, Routing Protocols, Telecommunications, Network Routing, Network Architecture, Network Planning And Design, General Networking, Computer Networking, System Programming, Data Validation, Data Integrity
★ 4.6 (2.4K) · Intermediate · Course · 1 - 3 Months