Join the Java 27 Launch!
Join us on September 15th for a special three-hour livestream as we celebrate the release of Java 27. Expect live coding, technical deep dives, and conversations with special guests from the JDK team and community.
The Destination for Beginners, Students, and Teachers of Java
Why Java?
Learner's Corner
Teacher's Corner
Try out Modern Java Now
The Java Playground allows you to run snippets of program code to see the results. The way the Java Playground works, no class or main method is required. Just hit run below!
Recently Updated
Been here before? Looking for something new to learn? Try these!
Passing and Returning Reference Data
Learn how to write pass and return reference data.
Class Variables and Methods
Learn how to write class variables and methods.
Scope and Access
Learn where data exists and can be accessed amongst classes and methods.
Learning Java Has Never Been Easier
Videos to get you started
2026 AP CSA Exam FRQ #1 Account Explained
In this video, we walk through FRQ 1, where students were asked to write a constructor and method for an Account class.
2026 AP CSA Exam FRQ #2 Bottle Class Explained
In this video, we walk through FRQ 2, where students were asked to write the Bottle class.
2026 AP CSA Exam FRQ #3 Attendance Explained
In this video, we walk through FRQ 3, where students were asked to write a method to analyze data in an ArrayList.
2026 APCSA Exam FRQ #4 Game Board Explained
In this video, we walk through FRQ 4, where students were asked to write a method to analyze a 2D Array.