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.

Duke University
Skills you'll gain: Software Design, Java, Java Programming, AI Personalization, Data Processing, Data Analysis, Data Structures, Algorithms, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Object Oriented Programming (OOP), Java Programming, Object Oriented Design, Computational Thinking, Java, Algorithms, Debugging, Programming Principles, Computer Programming, Pseudocode, Program Development, Mathematical Theory & Analysis, Integrated Development Environments, Analysis, Analytical Skills, Software Development Methodologies
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: JUnit, Test Driven Development (TDD), Unit Testing, Test Case, Software Testing, Mockups, Eclipse (Software), Test Data, Development Testing, Test Automation, Test Execution Engine, Integrated Development Environments, Test Script Development, Testability, Java
Intermediate · Specialization · 1 - 3 Months

Duke University
Skills you'll gain: Software Design, Programming Principles, Object Oriented Programming (OOP), Java, Data Preprocessing, Computer Programming, Data Analysis Software, Data Structures, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), Java, File Management, Cascading Style Sheets (CSS), Test Automation, Web Scraping, Data Validation, Web Development Tools, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Software Design
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, Relational Databases, Object-Relational Mapping, SQL, Data Access, Java Platform Enterprise Edition (J2EE), Databases, Data Persistence, Java, Data Manipulation, Data Mapping, Java Programming, JUnit, Object Oriented Programming (OOP), Query Languages, Database Management, Data Integrity, Database Systems, Enterprise Application Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Integrated Development Environments, Software Design Patterns
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Software Documentation, Application Design, Software Testing, Performance Tuning, Data Persistence
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Scripting, Java, Server Side, Hypertext Markup Language (HTML), Web Applications, Model View Controller
Intermediate · Course · 1 - 4 Weeks

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Model View Controller, Selenium (Software), Web Applications, Java, JUnit, Data Access, Software Testing, Application Development, Agile Software Development, Test Automation, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Development Environment, Java, Integrated Development Environments, Encryption, Cryptography, Virtualization and Virtual Machines, Performance Tuning, Application Programming Interface (API), Object Oriented Programming (OOP), Scalability
Intermediate · Course · 1 - 3 Months