
Skills you'll gain: Distributed Computing, Java, Middleware, NoSQL, Event-Driven Programming, Databases, Software Architecture, Servers, Web Services, Microservices, Scalability, Transaction Processing
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Development Environment, Data Structures
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Hibernate (Java), Object-Relational Mapping, Spring Boot, Restful API, Java, NoSQL, Database Development, SQL, Databases, Database Design, Application Frameworks, Java Programming, Data Access, Database Management, Relational Databases, Back-End Web Development, Software Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Maintainability
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Object Oriented Design, Unity Engine, Game Design, Software Design Patterns, Data Structures, C# (Programming Language), Video Game Development, Programming Principles, Graph Theory, Software Architecture, Algorithms, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Debugging, Functional Design
Intermediate · Course · 1 - 4 Weeks

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

EDUCBA
Skills you'll gain: File I/O, Object Oriented Programming (OOP), Java Programming, Data Structures, Data Persistence, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Preprocessing, Java, Data Structures, File I/O, Java Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Programming (OOP), Software Documentation, Java Programming, Java, Computer Programming, Programming Principles, Computational Thinking, Computer Science
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Data Structures, Javascript, Application Programming Interface (API), Computer Programming, Object Oriented Programming (OOP), Debugging
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