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

LearnQuest
Skills you'll gain: Apache Maven, Spring Framework, Microservices, Java Platform Enterprise Edition (J2EE), Spring Boot, Java, Java Programming, Build Tools, Back-End Web Development, Software Architecture, Server Side, Load Balancing, Cloud Development, Restful API, Web Applications, Scalability
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Software Design Patterns, Node.JS, Event-Driven Programming, Object Oriented Design, Software Design, Software Architecture, Javascript, Object Oriented Programming (OOP), Code Reusability, Maintainability, Performance Tuning
Intermediate · Course · 1 - 3 Months

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

Coursera
Skills you'll gain: Object Oriented Programming (OOP), Java, Object Oriented Design, Java Programming, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Java, Java Programming, Algorithms, Computational Thinking, Object Oriented Programming (OOP), Functional Design, Development Environment
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Virtual Machines, Package and Software Management, Memory Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java Programming, Java, Data Management, Secure Coding, Theoretical Computer Science, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Unified Modeling Language, Software Design Patterns, C++ (Programming Language), Software Architecture, Object Oriented Design, Software Design, Code Reusability, Object Oriented Programming (OOP), Maintainability, Programming Principles, Memory Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Code Reusability
Beginner · Course · 1 - 4 Weeks

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