Guided curriculum
Follow the course in order and always know what lesson comes next.
Java Learner
Learn Java with a curriculum, not a pile of tabs.
Start from the basics, move lesson by lesson, practice what you read, and keep the reference close when you need it.
Searchable reference
Jump to syntax, APIs, and examples when you need a fast refresher.
Hands-on practice
Use training pages and the browser compiler to test ideas while you learn.
Start here
The first modules are laid out for you.
Module 1
6 lessonsModule 1: Getting Started with Java
A deep dive into the absolute basics: understanding the Java ecosystem, setting up your environment, and compiling and running your first program with confidence.
Module 2
3 lessonsModule 2: Variables, Data Types, and Operators
The fundamental building blocks for storing information and performing calculations in Java.
Module 3
2 lessonsModule 3: Control Flow and Decision Making
Directing the flow of your program's execution using conditional statements and loops to make intelligent decisions.
Module 4
4 lessonsModule 4: Methods and Code Reusability
Structuring your program into reusable functions, understanding how data is passed, and mastering the call stack.
Keep studying
Everything you need is in the same app.
Lessons are for learning in order. The reference is for quick lookup. The compiler is for testing ideas. Practice pages help you move from reading to doing.