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You can start many Coursera courses for free by previewing the first module. This includes video lectures, readings, and graded assignments—plus Coursera Coach support where available.

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Previewing gives you free access to the first module—including graded assignments and support tools, where available. To unlock the rest of the course or earn a certificate, you’ll need to pay or apply for financial aid. Some programs also offer a 7-day free trial for full access.

Top Free Courses - Learn Free Online

Try a Course Free—Preview Lessons or Start a Free Trial

Status: Free
Princeton University
Computer Science: Programming with a Purpose
Skills you'll gain: Java Programming, Computer Programming, Programming Principles, Java, Object Oriented Programming (OOP), Performance Testing, Algorithms, Computer Science, Data Structures, Computational Thinking, Animations, Debugging, Simulations
4.7
Rating, 4.7 out of 5 stars
1.3K reviews
Beginner · Course · 1 - 3 Months
Status: New
Status: Free Trial
Status: AI skills
IBM
IBM Java Developer
Skills you'll gain: Software Development Life Cycle, Hibernate (Java), Cloud-Native Computing, GitHub, Software Architecture, ChatGPT, Web Development Tools, API Design, CI/CD, Object Oriented Programming (OOP), Responsive Web Design, Object-Relational Mapping, Development Environment, Java, Java Programming, Version Control, Professional Networking, Application Deployment, Database Management, Software Design
4.6
Rating, 4.6 out of 5 stars
6.1K reviews
Beginner · Professional Certificate · 3 - 6 Months
Status: Free
Princeton University
Algorithms, Part I
Skills you'll gain: Algorithms, Data Structures, Programming Principles, Theoretical Computer Science, Java, Java Programming, Computational Thinking, Object Oriented Programming (OOP), Performance Testing
4.9
Rating, 4.9 out of 5 stars
12K reviews
Intermediate · Course · 3 - 6 Months
Status: Free Trial
LearnQuest
Introduction to Java
Skills you'll gain: Eclipse (Software), Java Programming, Integrated Development Environments, Development Environment, Java, Software Installation, Programming Principles, Computer Programming, Object Oriented Programming (OOP)
4.6
Rating, 4.6 out of 5 stars
2.1K reviews
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Core Java
Skills you'll gain: JUnit, Java Programming, Java, Apache Maven, JSON, Unit Testing, Programming Principles, Computer Programming, Test Case, Object Oriented Programming (OOP), Software Testing, Integrated Development Environments, Web Applications, Data Structures, Network Protocols, Style Guides
4.8
Rating, 4.8 out of 5 stars
35 reviews
Intermediate · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Object-Oriented Java: Inheritance and Encapsulation
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Object Oriented Design, Java, Data Validation, Computer Programming, Software Design, Data Integrity, Computer Science
4.1
Rating, 4.1 out of 5 stars
21 reviews
Intermediate · Course · 1 - 4 Weeks

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Status: Free Trial
Codio
Java Basic Structures: Arrays, Strings, and Files
Skills you'll gain: Data Import/Export, Data Structures, Computational Thinking, Computer Programming, Programming Principles, Computer Science, Java, Java Programming, File Management
4.6
Rating, 4.6 out of 5 stars
42 reviews
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Java Object Basics: Functions, Recursion, and Objects
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Software Documentation, Java, Computer Programming, Programming Principles, Computer Science
4.1
Rating, 4.1 out of 5 stars
21 reviews
Intermediate · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Java Basics: Selection and Iteration
Skills you'll gain: Debugging, Programming Principles, Java Programming, Computer Programming, Java, Integrated Development Environments, Computer Science
4.5
Rating, 4.5 out of 5 stars
112 reviews
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
University of California San Diego
Learn to Teach Java: Inheritance and Recursion
Skills you'll gain: Cultural Responsiveness, Java Programming, Java, Object Oriented Programming (OOP), Pedagogy, Object Oriented Design, Computer Programming, Programming Principles, Algorithms
4.7
Rating, 4.7 out of 5 stars
10 reviews
Beginner · Course · 1 - 3 Months