Multiple educators
Skills you'll gain: Unit Testing, Data Structures, Event-Driven Programming, File I/O, Interactive Data Visualization, Java, Java Programming, User Interface (UI), Object Oriented Programming (OOP), JUnit, Debugging, Object Oriented Design, Computer Programming, Cryptography, Software Engineering, Performance Tuning, Algorithms, Data Analysis, Software Design, Problem Solving
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Object Oriented Design, Java, Java Programming, File Management, Application Development, Programming Principles, Data Structures, Data Management, Integrated Development Environments
Intermediate · Course · 1 - 3 Months

Heriot-Watt University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Computer Programming, Application Development, Programming Principles, Computational Logic, Software Development, Debugging, Data Structures
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Maven, Java, Java Platform Enterprise Edition (J2EE), Object Oriented Design, Hibernate (Java), Unit Testing, File I/O, Docker (Software), Software Design Patterns, Integrated Development Environments, Object-Relational Mapping, Functional Design, Maintainability, System Configuration
Beginner · Specialization · 3 - 6 Months

Amazon
Skills you'll gain: File I/O, Object Oriented Programming (OOP), Object Oriented Design, Java, Software Design, Maintainability, Debugging, Data Structures
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Maven, File I/O, Data Import/Export, Object Oriented Programming (OOP), JSON, Java Programming, Debugging, Object Oriented Design, JUnit, Software Documentation, Data Structures, Computer Programming, Restful API, Integrated Development Environments, Java, Programming Principles, Data Validation, Network Protocols, Unit Testing, Computer Science
Beginner · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Debugging, Java, Algorithms, Java Programming, Program Development, Programming Principles, Statistical Analysis, Software Design, Computer Programming, Data Import/Export, Integrated Development Environments, File I/O, Data Processing, Software Documentation, Data Manipulation, Object Oriented Programming (OOP), API Design, Data Analysis, Software Testing, Problem Solving
Beginner · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Java Programming, Java, File I/O, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Software Design, Computer Programming, Application Frameworks, Data Structures, Virtual Machines, Web Development, Debugging, Data Persistence, Package and Software Management, Development Environment
Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Java, Programming Principles, Computer Programming, Application Development, Program Development, Software Design Patterns, Debugging, Unit Testing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Object Oriented Design, Virtual Machines, Linux Commands
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Kotlin, Object Oriented Programming (OOP), Programming Principles, Android Development, Data Structures, Computer Programming, Mobile Development, Debugging
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: jQuery, Javascript and jQuery, Ajax, Javascript, Data Manipulation, HTML and CSS, Data Validation, UI Components, Scripting, JSON, Event-Driven Programming, Scripting Languages, Web Development Tools, Web Design and Development, Web Applications, Programming Principles, Cascading Style Sheets (CSS), Game Design, Hypertext Markup Language (HTML), Object Oriented Programming (OOP)
Beginner · Specialization · 3 - 6 Months