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.

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

LearnQuest
Skills you'll gain: Java Programming, Java, Software Development Tools, Application Servers, Web Applications, Development Environment, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Development, Eclipse (Software), Program Development, Computer Programming, Object Oriented Design, Mobile Development, Programming Principles, Integrated Development Environments, UI Components, Event-Driven Programming, User Interface (UI), Virtual Machines
Intermediate · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Programming Principles, Java Programming, Java, Computer Programming, Code Reusability, Data Structures, Object Oriented Programming (OOP), Computational Logic, Program Development, Problem Solving, Algorithms, Eclipse (Software)
Beginner · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Java, Object Oriented Programming (OOP), Java Programming, Object Oriented Design, Android Development, Android Studio, Mobile Development, Memory Management, Android (Operating System), Programming Principles, Integrated Development Environments, Development Environment
Mixed · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Event-Driven Programming, Distributed Computing, Java Programming, Java, OS Process Management, Scala Programming, Servers
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Algorithms, Debugging, Java, Computer Programming, Java Programming, Software Design, Programming Principles, Data Access, Object Oriented Programming (OOP), Data Preprocessing, Program Development, Data Import/Export, File I/O, Software Documentation
Beginner · Course · 1 - 3 Months

Instituto Tecnológico de Aeronáutica
Skills you'll gain: Model View Controller, Selenium (Software), Web Applications, Java, Java Programming, Data Access, Java Platform Enterprise Edition (J2EE), Agile Methodology, Web Development, Integration Testing, Software Testing, Application Development, Agile Software Development, Test Automation, Functional Testing, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: JUnit, File I/O, Unit Testing, Java Programming, Debugging, Java, Maintainability, Software Development, Secure Coding, Software Testing, Authentications, Data Import/Export, Cryptography, Eclipse (Software), Integrated Development Environments, Encryption, Data Structures
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Object Oriented Programming (OOP), Java, File I/O, Algorithms, Java Programming, Object Oriented Design, Data Structures, Encryption, Computer Programming, Software Engineering, Cryptography, Data Store, File Management, Data Import/Export, Web Applications
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Data Structures, Java Programming, Java, Object Oriented Design, Software Design, Algorithms, Theoretical Computer Science, Code Reusability, Object Oriented Programming (OOP), Network Routing, Application Design, Application Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Software Development Tools, Software Development Life Cycle, Program Development, Computer Programming Tools, Computer Programming, Development Environment, Software Development, Programming Principles, Integrated Development Environments, Software Installation, Command-Line Interface, Linux Commands
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Extensible Markup Language (XML)
Mixed · Course · 1 - 4 Weeks