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: Apache Maven, Java Programming, Java, Build Tools, Database Design, Database Development, Database Application, Eclipse (Software), Full-Stack Web Development, CI/CD, Web Applications, Code Reusability, Continuous Integration, Model View Controller, Web Development, Authentications, Authorization (Computing), Application Development, UI Components, Automation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: User Research, Cascading Style Sheets (CSS), JSON, Hypertext Markup Language (HTML), User Experience Design, Design Research, Linux Commands, Javascript, Unix, Usability, User Centered Design, Debugging, Software Visualization, Web Content Accessibility Guidelines, Pseudocode, User Interface and User Experience (UI/UX) Design, UI Components, Unit Testing, Code Reusability, Application Development
★ 4.7 (24K) · Beginner · Professional Certificate · 3 - 6 Months

Codio
Skills you'll gain: Algorithms, Data Structures, Java, Java Programming, Other Programming Languages
★ 3.4 (9) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Javascript, Responsive Web Design, Web Design and Development, Ajax, Front-End Web Development, Bootstrap (Front-End Framework), Hypertext Markup Language (HTML), Web Design, Web Development, Web Development Tools, Development Environment, JSON, Web Applications, Frontend Performance, Browser Compatibility, Object Oriented Programming (OOP), Event-Driven Programming, User Interface and User Experience (UI/UX) Design
★ 4.7 (17K) · Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: HTML and CSS, Web Design and Development, Front-End Web Development, Responsive Web Design, Web Applications, Web Design, Ajax, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Development, Web Development Tools, Development Environment, Javascript, Frontend Performance, Web Content Accessibility Guidelines, Server Side, Semantic Web, Software Installation
★ 4.7 (17K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, Memory Management, Software Design Patterns, Functional Design
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

Skills you'll gain: Java Programming, Debugging, Java, Programming Principles, Computer Programming, Algorithms, Computer Programming Tools, Data Structures, Pseudocode, Software Installation, Software Architecture, Other Programming Languages, Code Reusability, Data Storage
Beginner · Course · 1 - 3 Months

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

University of California San Diego
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Bioinformatics, Advanced Mathematics, Data Storage, Development Testing, Theoretical Computer Science, Computational Thinking, Network Analysis, Computer Programming, Machine Learning Algorithms, Programming Principles, Python Programming, C and C++, Java, Rust (Programming Language), Javascript, Software Testing, Debugging
★ 4.6 (17K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Java, Mobile Development, Java Programming, Object Oriented Programming (OOP), Application Frameworks, Android Development, Application Development, Program Development, Software Development
★ 4.6 (70) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Access, Object Oriented Design, Relational Databases, Object Oriented Programming (OOP), Database Software, JUnit, Data Integrity, SQL, Database Development, Java, Java Programming, Database Management, Databases
★ 4.6 (39) · Beginner · Course · 1 - 4 Weeks