J: Introduction

Start learning J with a quick overview and Hello World.

Read time: 1 min • Words: 40

My Progress

J — Introduction

Overview

This is a starter page for J.

Hello World

// Hello World in J
Hello, World!

What you'll learn

How to run J
Basic syntax style
Next steps (lessons & references)

Next

Open the Syntax & Cheat Sheet page for this language.