Codio
Skills you'll gain: Apache Maven, JSON, JUnit, Java Programming, Java, Restful API, Integrated Development Environments, Programming Principles, Package and Software Management, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Application Development, UI Components
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Programming Principles, Java, Data Structures, Program Development, Object Oriented Programming (OOP), Computer Programming, Debugging, Application Programming Interface (API), Database Application
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Transaction Processing, Data Access, Dataflow, Database Management, Stored Procedure, SQL, Object-Relational Mapping, Data Integrity, Data Import/Export, Databases, Secure Coding, File Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Information Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Object Oriented Design, Computer Programming, Programming Principles, Data Structures, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Functional Design, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Development Testing, Software Testing, Testability, Java, Test Case
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: OS Process Management, System Programming, Distributed Computing, Event-Driven Programming, Scalability, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Application Design, Application Development, UI Components, Event-Driven Programming, Integrated Development Environments, Java Programming, User Interface (UI), Java, Software Design
Intermediate · Guided Project · Less Than 2 Hours