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Free Java Courses & Certificates [2025]

Explore the Free Java Course Catalog

Status: Free
Princeton University
Computer Science: Programming with a Purpose
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Animations, Debugging
4.7
Rating, 4.7 out of 5 stars
1.3K reviews
Beginner · Course · 1 - 3 Months
Status: Free
Princeton University
Algorithms, Part I
Skills you'll gain: Data Structures, Algorithms, Java, Performance Testing, Computer Programming, Java Programming, Theoretical Computer Science, Object Oriented Programming (OOP), Computational Thinking
4.9
Rating, 4.9 out of 5 stars
12K reviews
Intermediate · Course · 3 - 6 Months
Status: New
Status: Free Trial
IBM
IBM Java Developer
Skills you'll gain: Prompt Engineering, Cloud-Native Computing, Software Development Life Cycle, Software Architecture, Hibernate (Java), Database Design, Docker (Software), Containerization, Git (Version Control System), GitHub, Cascading Style Sheets (CSS), Microservices, Object Oriented Programming (OOP), Large Language Modeling, Restful API, Java Programming, Engineering Software, Version Control, Database Management, Software Design
4.7
Rating, 4.7 out of 5 stars
5.7K reviews
Beginner · Professional Certificate · 3 - 6 Months
Status: Free
Princeton University
Computer Science: Algorithms, Theory, and Machines
Skills you'll gain: Theoretical Computer Science, Data Structures, Computer Science, Computer Architecture, Algorithms, Programming Principles, Computational Logic, Computational Thinking, Java Programming, Computer Hardware
4.7
Rating, 4.7 out of 5 stars
708 reviews
Intermediate · Course · 1 - 3 Months
Status: Free Trial
LearnQuest
Introduction to Java
Skills you'll gain: Eclipse (Software), Java, Java Programming, Integrated Development Environments, Development Environment, Software Installation, Computer Programming, Programming Principles, Program Development, Object Oriented Programming (OOP)
4.6
Rating, 4.6 out of 5 stars
2.1K reviews
Beginner · Course · 1 - 4 Weeks
Status: Free
Princeton University
Algorithms, Part II
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computational Thinking, Computer Programming, Network Routing, Programming Principles, Network Model, Java Programming
4.9
Rating, 4.9 out of 5 stars
2K reviews
Intermediate · Course · 3 - 6 Months

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Status: Free Trial
Codio
Core Java
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
4.8
Rating, 4.8 out of 5 stars
35 reviews
Intermediate · Course · 1 - 4 Weeks
Universidad de Palermo
Introduction to Java
Skills you'll gain: Eclipse (Software), Java, Java Programming, Object Oriented Programming (OOP), Integrated Development Environments, Data Structures, Programming Principles, Algorithms, Computer Programming, Development Environment, Debugging, Software Development
Beginner · Course · 1 - 4 Weeks
Universidad Nacional Autónoma de México
Introducción a Java
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Software Design, User Interface (UI), Algorithms, Data Structures
4.1
Rating, 4.1 out of 5 stars
939 reviews
Beginner · Course · 1 - 3 Months
Status: Free Trial
Codio
Java Basic Structures: Arrays, Strings, and Files
Skills you'll gain: Data Import/Export, Java Programming, Java, Programming Principles, Computer Programming, Data Structures, Object Oriented Programming (OOP), File Management, Computer Science
4.6
Rating, 4.6 out of 5 stars
41 reviews
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Java Basics: Selection and Iteration
Skills you'll gain: Debugging, Java Programming, Java, Programming Principles, Computer Programming, Computer Science, Data Structures, Data Storage
4.5
Rating, 4.5 out of 5 stars
111 reviews
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Java: Algorithms
Skills you'll gain: Algorithms, Data Structures, Java, Java Programming, Theoretical Computer Science, Computer Programming, Computational Thinking
Intermediate · Course · 1 - 4 Weeks